absolutely agog at how expensive they are now. Friend of mine in Colorado shared a picture of a case of them in a game store. $100 for Dikatana. $50 or $60 for Fzero X. They aren't in box either, just loose carts. I guess roms are the only way to really enjoy these games now, since they're prohibitively expensive used.
For a time when I was going to regular house hangs I wanted to build a portable N64 emulator machine, that would run games and have 4 controllers, but also fit into a bag or something, never got round to it. Kind of hard to find commodity hardware that fit all those criteria