Jan 12, 2026 · 55m · startup-ideas
Side Hustle King: 6 $60K/Mo Businesses Nobody's Doing
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
Host Greg Isenberg and serial entrepreneur Chris Kerner explore a diverse collection of high-margin, low-friction business ideas spanning AI software, automated mobile services, niche vending, and collectible arbitrage. Throughout the discussion, they emphasize leveraging modern distribution hacks and executing rapidly rather than guarding ideas in secrecy.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Greg holds 37% of the talking time here. How this is scored →
Greg as informed peer 5.5 Guest teaching 4.6 Guest disagreement 1.9 Greg pushing back 3.3
speaking balance: gold is Greg, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 44:55 Backtracking the backtrack on eight-figure Pokémon scaling
Chris emphatically rejects the notion that his vintage Pokémon buying strategy is just a small hobby, calling out the editor to clip his argument that cornering all 152 cards scales to an eight-figure business.
Hardest push from Greg ▶ 16:06 Greg challenges Chris's big-tech idea theft scenarioGreg refuses Chris's premise that Facebook developers steal early-stage startup ideas overheard at bars, citing his firsthand advisory experience to explain why tech giants only pursue validated billion-dollar opportunities.
Biggest teaching moment ▶ 3:30 Educating on Facebook Marketplace's unexploited API permissionsChris corrects Greg's assumption that building third-party tools on Facebook Marketplace is technically prohibited, explaining that the API permits scraping and arbitrage software.
Greg holds their own ▶ 16:15 Greg details corporate product vetting inside big techGreg demonstrates insider domain expertise regarding tech enterprise operations, explaining the exact risk-reward thresholds and validation metrics required before leadership at companies like Facebook will execute on an idea.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Greg as informed peer | Guest teaching | Guest disagreement | Greg pushing back | Why |
|---|---|---|---|---|---|---|
| Building Third-Party Software for Facebook Marketplace | 5 | 6 | 2 | 1 | Chris educates Greg on Facebook Marketplace data and reveals that contrary to common belief, Facebook's API does allow third-party developer apps. Greg contributes by looking up and citing Shopify app store revenue and developer statistics. | |
| Viral Dumb Products and Short-Form Distribution | 5 | 4 | 1 | 3 | Chris pitches viral, simple 3D-printed physical products distributed via short-form algorithms. Greg expands on human psychology by suggesting founders intentionally add useless AI features to harness anti-AI rage-bait engagement. | |
| Why Founders Should Openly Share Business Ideas | 7 | 3 | 3 | 6 | When Chris argues that founders shouldn't fear sharing ideas and suggests Facebook developers copy bar conversations, Greg pushes back using his background advising major tech platforms, explaining that tech giants ignore ideas until they hit massive scale and clear revenue thresholds. | |
| Automated Mobile Bike and Sports Gear Wash | 6 | 5 | 1 | 2 | Chris breaks down the unit economics and manual MVP setup for a mobile bike-washing trailer. Greg builds on the model by suggesting municipal B2G trail partnerships and applying subscription pricing learned from local car wash operators. | |
| Anti-Drink Spiking Stickers and Nightlife Marketing | 5 | 5 | 1 | 2 | Chris shares his college wristband advertising story and pitches drink-spiking prevention stickers sold to nightlife venues. Greg validates the concept by connecting it to entrepreneur Ty Haney's IRL experiential customer acquisition thesis. | |
| High-Margin Trailhead and Niche Vending Machines | 4 | 4 | 1 | 2 | Chris details the high profit margins of rock vending machines using Buc-ee's retail spatial planning as proof. Greg adapts the concept to tourist seashell dispensers at beach destination airports. | |
| Cornering Vintage First-Edition Pokémon Collectibles | 5 | 6 | 4 | 5 | Chris reveals his strategy of buying vintage 1999 first-edition non-holo cards to corner the market. Greg questions the realistic scalability and high capital outlay, prompting Chris to double down and demand the clip be highlighted as an eight-figure business thesis. | |
| Disrupting the Legacy Card Grading Monopoly | 7 | 4 | 2 | 5 | Greg highlights the inefficiencies of PSA's grading monopoly and rejects Chris's high-friction industry equity scheme. Together they design a fast, gamified DTC alternative featuring live streams, mystery pulls, and smartphone photo scanning. |
Statements from this episode (16)
Chris Kerner: Every Business Is Scalable; Question Is Degree of Difficulty
“I, in my opinion, everything is scalable, right? So the question, I just hate it when people say like, is that even scalable? Like, yes, it's scalable. The right question is how hard would it be to scale to that, to whatever number?”
Kerner: 51% of Social Media Purchases Happen on Facebook Marketplace
“51% of all recent social media purchases, so like not Amazon, social media purposes, all happened on Facebook Marketplace, ok?”
Kerner: Facebook Marketplace APIs Allow Third-Party Apps to Be Built
“I've already looked into it. Don't tell me the API permissions don't allow for it because they do.”
Kerner: Content only goes viral when half of viewers think it's dumb
“Nothing goes viral without half of people thinking you're dumb.”
Isenberg: People in general and on TikTok violently hate AI
“Especially on TikTok but in the world generally people hate AI. People hate it. Like it's very, very like they violently hate AI.”
Kerner: A founder's sole business idea is almost never their best bet
“The statistical probability that the only idea you have being like the best use of your time and money is almost zero. So keep that in mind, irrespective of my opinion of the idea. It's probably not the right idea for you because you don't have anything to com…”
Kerner: People only steal ideas if they share your exact background
“And so when we share our ideas, the only chance of someone stealing it is if that other person has had like the exact same life as us. They had the same work history, the same personality. They're also an introvert. Their mom also divorced their dad at age 14.…”
Isenberg: Big tech ignores startup ideas until they reach millions of users
“Someone like Facebook is only copying your idea once it hits millions or hundreds of millions of users.”
Kerner: Germany Leads Health/Fitness Trends Which Later Move West
“Germany is the world leader when it comes to health and fitness trends, and those trends always come out west.”
Kerner: Startup ideas are more important today than ever
“Ideas are everything. They're more important than ever today.”
Kerner: Repackaging existing products for new uses reliably creates winning businesses
“It's just, it's an old product in a different way with a different package, which has shown time and time and again, like, there's nothing too stupid. Like, you just repackage something, reframe it, how it's used, and you went.”
Kerner: Polished rock vending machines yield a 90% gross margin
“The rocks cost between five and 20 cents each. You sell them for two dollars each. That's a 90% profit margin.”
Kerner: Buc-ee's omits dining seating because table square footage is unprofitable
“That's why one of their biggest complaints is no seating for food. Like, they sell, they have multiple restaurants in there, but you can't sit down and eat anywhere, and it's because it's not profitable for them to put in tables, right?”
Kerner: Vending machines enable offline A/B testing for physical retail
“I love vending machines because it enables like offline AB testing. Right? Take one kind of generic vending machine, and you just, every month, you just swap out something else. Swap out the sign, swap out the product, and just see what crushes.”
Kerner: Kabuto King drove vintage card prices up 100x in 3 months
“And so now the price of a first edition Kabuto, ungraded, I think, last I checked, is like 10 to 20 dollars. So he has influenced the price to go up a hundred X plus over the course of about three months.”
Kerner has hoarded 1,000 ungraded first-edition 1999 Fossil Pokémon cards
“I have been buying two different cards. From 1999, fossil edition first first edition only, non-holographic, ungraded, any condition, near mint, heavily played, doesn't matter, and I have about a thousand of them so far, ok?”