I’ve sold $ millions in sports cards the past decade+ and hit $1m in sales faster than ever in 2025. And I learned most of my lessons the hard way. Here are 20 truths every reseller learns eventually — whether they want to or not 👇

Every one of these lessons came with a bruise. If you want the full story — and the data behind each one — 🎥 Watch the new video: “20 Hard Lessons from Reselling Sports Cards” 👉 https://t.co/1dYktUv9QJ

#20 Don't let the miserable people in your niche / hobby suck your joy. They exist, they likely won't change. Move on as fast as possible, even at the risk of you appeasing and blocking.

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#19 Reselling isn’t about freedom. It’s about mastery. You earn freedom by building systems that work while you do.

#18 PSA didn’t dominate grading by luck. They won on consistency. Collectors trust repetition more than revolution.

#17 Don’t buy hype. Buy history. Trends fade, legends compound. Nostalgia might be the most undervalued asset in the hobby.

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#16 Technology is your assistant. AI, automation, dashboards — they’re your leverage. If it saves you 10 minutes a day, it gives you a week of your life back every year.

#15 Mistakes are fine. Decline isn’t. You’ll trip a hundred times, but as long as you’re trending upward — you’re winning. Always zoom out.

#14 Surround yourself with people chasing the same thing. Your circle determines your ceiling. Community gives you perspective, shortcuts, and accountability you can’t get alone.

#13 If you fight trends, you lose money. Adapt fast or get left behind. The best resellers aren’t stubborn — they’re observant.

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#12 Bookkeeping doesn’t have to be fancy. It just has to be done. Two hours a month tracking income and expenses is the difference between a business and a hobby.

#11 Every successful reseller I know tracks their numbers. Not “vibe checks.” Real data. Revenue, ROI, sell-through rate, and time spent. You can’t grow what you don’t measure.

#10 Stress is usually a systems problem, not a sales problem. It’s your process screaming for attention. Solve the friction, and the stress (and lost money) disappears.

#9 If a part of your process stresses you out every week… fix it. That’s your bottleneck. One broken step in your system can cost you thousands in missed margin.

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#8 Top players are top for a reason. Don’t fall for B-list hype. There’s always someone holding the bag on “potential.” Stick with history as often as possible.

#7 Inventory doesn’t sell itself. If it’s sitting, it’s not selling. You have to move it — better listings, sharper titles, more photos, and daily activity.

#6 Compounding success isn’t sexy — but it’s everything. You stack small wins long enough, and the big ones start to feel inevitable. Momentum is the ultimate multiplier.

#5 The hobby rewards consistency more than talent. Anyone can hustle for a week. The pros show up for 52 straight.

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#4 You’ll overestimate value and underestimate work. Every reseller does. You see shiny cards and forget the time it’ll take to clean, list, ship, and answer 47 buyer messages.

#3 Every collection takes longer to close than you think. Deals are marathons, not sprints. Patience isn’t a weakness — it’s where the big profits hide.

#2 Cheap inventory isn’t always a win. The best deals balance product, price, and process. A $5K deal can outperform a $20K one if it fits your system perfectly.