Does anyone here have any recommendations on where to find reasonably-priced NES, SNES, and N64 cartridges online? Ebay has poor selection and everyone selling thinks their copy of Kung Fu is worth $25. Is there a discogs-type website for old video games?
Honestly your best bet is offline. They’re not commonplace but if you can find a store that sells old video games, that’s probably where you’ll find the best price.