About CardSZN

CardSZN is a sports-card media and resale brand built by lifelong collector JK Stewart. JK started collecting in first grade after a friend took him to a small card shop in Indianapolis—and he’s been hooked ever since. Like a lot of 90s kids, he grew up in the Junk Wax era, so most of those early stacks aren’t exactly paying for retirement. But when SkyBox Autographics hit the scene and he pulled an Eric Montross Autographics, the hook was set, so to speak.

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Over the years, the site has worn a few different names—Triton Cards, JK’s Cards—before landing on CardSZN. The name stuck because it just felt right. (And, being a web designer at Paired Inc., JK appreciated that the domain was actually available.)

CardSZN blends media, marketplace, and long-term collecting strategy. The goal is simple: help hobbyists enjoy smarter flips, better deals, and a deeper love of the trading-card world. You’ll find honest takes on what’s trending, data-driven buying guides, and a shop full of curated slabs and singles. JK still rips a little wax for fun—because what’s the hobby without that thrill—but most of his focus today is on investment-grade pieces (but not necessarily Kevin O’Leary-investment-grade pieces) and long-term holds that tell the story of the game itself.

Every post, every flip, every card listed is part of that bigger mission: building CardSZN into a trusted hub for collectors who love the hobby as much as he does.