Yes, this might sound crazy but I believe that end of the wii/wiifit lifetime. Wiifit will have sold to 75% of the wii install base. Why?
First the hype around wiifit is incredible.
Second wiifit is pointing at one of the pain points in the world (weight)
thirth a lot of developers already announced balance board support. Even people that dont have a Wii yet but want to get skate-it just to try it out will need a wii and balanceboard . So that install base will be 1 on 1.
I think the attachrate of wiifit will be more then wii play.
Prove me wrong?