Yeah, that wasn't meant as proof it definitely isn't, just wanted to note it's the one thing that seems to point in the other direction
That is where companies such as Ultra Pro, BCW, Ultimate Guard, etc

Cards Most Likely to Have Value If youre going through an old collection, prioritize checking: Vintage (1999-2003) Base Set Charizard (especially 1st Edition or Shadowless) Base Set holos in general Gold Star cards from EX era Shining Pokemon from Neo series Modern (2020+) Alternate Art cards Special Art Rares / Illustration Rares Charizard cards from any set Gold cards Trainer Gallery cards Always Valuable Sealed products (even recent ones appreciate) Error cards and misprints Trophy cards and prize cards Promo cards with limited distribution Red Flags: Cards That Look Valuable But Arent Dont get too excited about: World Championship deck cards (have different backs, not tournament legal, worth very little) Jumbo oversized cards (promos, usually $1-5) Common cards from valuable sets (a common from Base Set is still just a common) Replica or fake cards (more common than youd think) The Fastest Way to Check Value If you have a stack of cards to check, manually searching each one takes forever

This lot is a complete Master Set of 332 Pokmon Skyridge cards, consisting of cards 1 through 150, cards H1 through H32, and the reverse holo versions of cards 1 through 150