COD5 Wii version sales hurt by supply and not demand.Same for other titles?

[flagstaad]

I still can't believe that the Wii version of this game it's at its original price, the 360 and PS3 versions are at 50 and are going down with the release of Modern Warfare 2. I will not buy this game for U$50 when its missing so many options versus the HD versions.