You know, for the longest time, when anyone mentioned online sports collectibles, trading cards, or that weird corner of the internet where nostalgia meets investment, only one name popped up: eBay. It was the king of cardboard, the marketplace where collectors went to snag that rare rookie card or flip a stash of Pokémon holographics from the attic. But here’s the twist—there’s a new player in town, and it’s a big one. Walmart, yes that Walmart, the retail behemoth we all know for rollbacks and supercenters, has quietly been positioning itself to take on eBay in the very space eBay thought was untouchable. And folks, the numbers are starting to show that Walmart isn’t just dabbling—it’s moving the needle in a big way. Let’s start with the headline that got my attention: trading card sales on Walmart Marketplace have exploded, up over 200% year-over-year. That’s not just growth; that’s a tidal wave. Sports cards alone jumped more than 60%. That’s the kind of surge you can’t ignore, t...