There’s an interesting arbitrage opportunity in Pokémon cards right now. @KabutoKing_ has driven 1st edition Kabuto cards demand up like CRAZY. PSA 10 has gone from ~$250 to ~$1500 in a couple days. Kabuto is a relatively common card in packs, but the supply has now been cornered. The only way for new cards to enter the market is for them to be ripped from packs. Interestingly enough though, the first edition fossil packs (where you can get this card) haven’t gone up in price at all. Could be a big arbitrage opportunity.