I was at Walmart last week. They redid the section. Previously it was isle, PS3, then 360, then Wii. Last time it was Wii, DS, 360, and then PS3, PS2 and PSP.
Plus Wii was expanded from 2 cases to 3, along with 2 cases for DS. 360 had 2 cases, PS3 one case, PS2 one case, and PSP 1 case. There was also another case for discount games that was 80% PS2 but also had some XBOX games.
So, if you look in the store that only sells new games, Wii library is > PS2 library.
If you look at my shelf, Wii library is > PS2 library and I had the PS2 a lot longer than the Wii... over the last 4 years I bought about 10 games for every PS2 game I bought during the same time period.








