Well, this actually made me get up and count all my games.
PS1 - 50
PS2 - 95
PS3 - 32
PS4 - 4
Xbox - 19
Xbox 360 - 43
NES - 41
SNES - 18
GB - 6
GBA - 33
N64 - 13
Gamecube - 21
Dreamcast - 3
Steam - 50 (Thank the internets for Humble Bundle XD )
I also have a PSP but uh... it's hacked, so.. all of them?

Sega - 14