rayman sold in the same level as the ps3 version and it's 13x bigger installed base, the same for sonic all stars racing transformed. lego city - 750k, zombi u - 660k, monster hunter tri - 500k
Wii u owners buy 3rd party games, unless you want to say ps4/xone owners don't buy third party games, it's hipocrisy. because out od the top 10 it's pretty similar for the 3.