currently:
NES
Genesis
N64 x2 (one is dead)
Gamecube
Wii x2 (one is sealed)
Wii U x3 (two are sealed)
3DS x2 (one is sealed)
3DS XL (sealed)
"new" 3DS XL x2 (both sealed)
PS2 x2 (one used for parts, the other one is modded)
PS3 x2 (60GB model is dismantled - might be repaired one day; Super Slim model works)
PSP x2 (one works, one unsure)
360 x3 (one works, one dead, one sealed)
X1 x3 (two are sealed)
used to:
SNES (gave to brother)
Dreamcast (borrowed, never returned)
Xbox (gave to brother)
DS (borrowed, never returned)
PS3 Slim (sold it)
PSPgo (stolen)