Premise of this thread is faulty. It's assuming that people buy a console for one particular game, which isn't always the case.
When I bought a PS3, it wasn't one game in particular that made me say "I need a PS3 fight now. I was interested in Uncharted, but it wasn't enough for me to buy the console. I was interested in Ratchet and Clank, but it wasn't enough. Heavy Rain was interesting, but it wasn't enough. Ditto for God of War 3.
None of these games individually motivated me to throw down 300 dollars on a console, but they all contributed till eventually I decided to purchase it.
Same thing with the Wii U. Is Lego City Undercover going to push units by itself? No, but it will sweeten the pot for people who had been looking into the Wii U. Same thing for Pikmin 3, Bayonetta 2, or Wonderful 101. However, the cumulative effect of the games together help move consoles.







