Wishful thinking on their part.
Given the Wii U's current library, it is ridiculously overpriced. A mini game collection and a game that has similar versions on the much cheaper 3DS, DS and Wii consoles is not nearly enough to justify that price.
Wii Sports/Fit/Play, Mario Kart, 3D Mario, Super Smash Bros., The Legend of Zelda, Metroid, Pikmin, Mario Party and the likes should turn things around eventually.