The only systems I haven't owned (that I know of) are the Neo Geo, the Sega Master System, TG16 and the N64. Of course, I don't have the PS3 and Wii either. I have owned, at one point or another, 3 different model Atari's (including the Jaguar), Colecovision w/Atari Add-on, Genesis w/ CD and 32X, NES, SNES, Gamecube, PSX, PSP, GB, GBP, GBA, DS, Game Gear, Nomad, PS2, XBox, 360, Dreamcast (9/9/99 baby)...I'm probably forgetting some. I WISH I still had them all. I've thought about buying them up again, but what would I do with them?