Well i think the games do not sell amazing because we havent seen a big third party effort on the Wii yet. Games that sold well on PS360 this year were titles like RE5 , SF IV games with extremely high budget, a lot of hype, that are very well known to gamers. MH 3 will be this sort of game for the Wii in Japan and it will sell extremely well.
Madworld sold poorly because of its character and appeal.
I had high hopes for Conduit but it flopped commercialy, mainly because the game simply is not as good as people expected. HVS created an engine, but the game itself is not that great so its hard to expect high sales.
If Wii gets a big Third Party game it will sell regardless of how "casual" is the userbase.
Its funny that no one discusses how many "average" games perform really badly on HD (and Conduit is an average game ) consoles, and people concentrate only on those blockbusters that sell well.
