Third party games that sold to more than 10% of their installed base since The Wii U launched:
GTA 5
COD BOP2
COD Ghosts
and almost FIFA 13
Wii U games that sold to more than 10% of their installed base since The Wii U launched:
NSMBU and Luigi U
SM3DW
Wii Party U
LoZ WW
Pikmin 3
Lego City
Zombi U
Monster Hunter
DK TF
Notable games that have sold more than 2 millions the Wii U have missed out on:
GTA
Minecraft
Battlefield
Far Cry
Tomb Raider
Hitman
Bioshock
Saints Row
Diablo
So it seems with the inclusion of MK8 and Smash Bros many Wii U owners will already own about 10 games. As a Tie Ratio of 10 is considered good, it seems that Wii U owners have enough games to play already.
The rich among us will always want more and it would be nice if Nintendo could provide it to us, but this is where they have to improve.