The Wii will have been out 4 years and I'll have bought 29 games at retail for 7.25 Wii games per year.
I've had the DS for a year less than that and bought 19 DS (6.33) and 8 GBA (2.66) games for a total of 27 games or 9 games a year.
I've had the PS3 for a year less than that and bought 10 games for 5 games per year.
Averaging over the 4 years it has been 66 games or 16.5 games/year.
EDIT: of those games, 11 Wii, 6 DS, 8GBA, and 8 PS3 games were either given to me or bought really cheap ($20 or under, under $10 for handhelds)








