Well you have to understand that some games are an exception-like SSBB you need the GC because the past SSB games have been on a standard controller and taking that option away from the games would force gamer to get use to the new controler and it can alienate them. Also Sakurai the maker of SSBB said he didnt want to add motion control to the game because it be too much of a hassle.
Same for Mario Kart wii some people need are still very comfortable with the standard game pad. There are jst some games that dont make good use of the wii remote alone so they add the game cube and or the classic controller.
I really cant think of anything to ay for the Wii Balance Board except that is more of a peripheral than a new controller so i dont think it its going to affect the Wii controller.
