Asymmetrical game play has a lot of potential for core gaming, but, as usual, its only a question of whether 3rd Parties get off their ass and use it properly. But having said this, im not even sure Nintendo will use it to the best of its potential. Hopefully we'll see indy studio's innovate more, just like we saw with Wii last gen.
As for the other reasons why Nintendo will clear 40 million, price is king and the Wii U is actually cheap.
While they don't pay for exclusives, as far as we know, they don't have to with all those jap. devs jumping from Sony. He who wins Japan, wins dev. support.
“When we make some new announcement and if there is no positive initial reaction from the market, I try to think of it as a good sign because that can be interpreted as people reacting to something groundbreaking. ...if the employees were always minding themselves to do whatever the market is requiring at any moment, and if they were always focusing on something we can sell right now for the short term, it would be very limiting. We are trying to think outside the box.” - Satoru Iwata - This is why corporate multinationals will never truly understand, or risk doing, what Nintendo does.
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