The Wii U is $100 more and, like the PS360, it is going to be a bit slow to manufacture at first. That is what is holding it back right now - supply. Also, the wii didn't drop off until year 5. It sold like hot cakes for its first 4 years. When PS360 became cheaper and HD TV's became widespread, the wii began to seem low-tech. Also, everyone already had one.