Everybody already bought this game in PS3 and Xbox360, so how do you expect them to buy this again. Wii U is getting this for first time and also users expecting some games in Wii U so they are going to give it a try and I won't expect this game did great in Wii U.
GAMING is not about spending hours to pass/waste our time just for fun,
its a Feeling/Experience about a VIRTUAL WORLD we can never be in real, and realizing some of our dreams (also creating new ones).
So, Feel Emotions, Experience Adventure/Action, Challenge Game, Solve puzzles and Have fun.
PlayStation is about all-round "New experiences" using new IP's to provide great diversity for everyone.
Xbox is always about Online and Shooting.
Nintendo is always about Fun games and milking IP's.