Worldwide, the Wii U has sold about a million units short of what the 3DS did in the same amount of time, and the software is selling about as well as the Vita's. The 3DS was given a major price cut in addition to all those games which helped sales. At the point, the Wii U won't be getting a price cut, which makes sense considering they're already selling at a pretty hefty loss. Plus there will be two next-gen consoles on the market, or at least very close to launch, by the time Mario, Mario Kart, and Wind Waker come to the Wii U. That will distract a lot of the core market, and it seems like the casual audience isn't interested.