I'm not so sure.
I'm curently thinking about getting a new console (very light/casual gamer).
I've got the PS3 mostly for playing Blu-ray and never found a compelling game.
The Wii U is extremely interesting, not only because of its price, but primarily because of the games.
I have no idea about the business case, but releasing the games elsewhere would certainly cannibalize their own console.
And while it may be profitable, I think a Nintendo without a viable console on its own would be in very dire straits.
That's why I have always seen the disappointing sales figures for the Wii U in the past with a crying eye, even though I was not looking to buy a console. The Nintendo empire is kind of precious.