What's the rarest videogame(s)/console(s) you own

[osamanobama]

PSP Go.... that should be worth a lot way down the road, its discontinued, didnt sell. but i still love it.

i also currently own:
PlayStation
PSone
PS2 (fat)
PS3 (fat 80gb 2 usb)
PS3 slim (160gb)
N64
Gameboy Color

i owned:
PSP 1000 (sold it)
PSP 2000 (stolen from me)
Nintendo DS
Gameboy Advance
Gameboy Advance SP
NES