They're only valuable due to artificial scarcity, just like NFTs. You could always copy the cards (just like you could 'right click save' an NFT image), althoug

They're only valuable due to artificial scarcity, just like NFTs. You could always copy the cards (just like you could 'right click save' an NFT image), although you wouldn't be able to play in a tournament with them, and The Pokemon Company could print more official cards of the most popular cards, but they don't because they want to fuel this craze because it makes them stupid amounts of money. And the vast number of collectors sure as hell aren't playing games with the valuable cards they collected the past few years. Logan Paul didn't spend $5 million on a Pokemon card just so he had it to play in a Pokemon tournament, especially since it's just an illustrator promo card anyway, doesn't even have a function in the game (at least as far as I can tell, I don't follow this closely, I did have a Magic The Gathering phase, though, which was the OG TCG and also has its own craziness).