I believe this is due to the lack of a Big first party launch title. I know, NSMBU is very BIG, but we've already got NSMB2 this year, and SM3DL last year. So, I think Nintendo fans are waiting for a big IP. Zelda, Mario 3D, Smash Bros., Metroid, Pikmin, Donkey Kong, etc.
I love everything about the Wii U, but I think the first party launch lineup (not the launch window) is just average. And average is not a word that fits Nintendo.
We need moar Zelda, now!
We need moar Unchartedzz!
We need less DLCs.








