The problem is Amir0x, and please don't take offense to this, but you and your opinion is basically obsolete. Because your opinion belongs to a very small minority (though a majority on GAF), but in the grand schemes of things, a minority.
The DS is the best selling system of all-time and the Wii is fastest selling of all-time. There is no debating that. "Gimmicks" or what some like to call innovations, bring in MORE people. People who ENJOY Motion Control, people who enjoy Touch Screen, people who enjoy the Miis and Face Raiders and Nintendogs and Wii Sports and blah blah you get the point. People enjoy new experiences, and they buy it in droves if it's actually fun and appealing. Nintendo has proven that time and time again.
But honestly if you want refined traditonal gaming, stick with Sony. Obviously Nintendo and (sorta) Microsoft will be going in new directions in the future. Will they totally disown core-refined-traditional games? Of course not. But their main focus will be on making new and innovative products that yes might not be completely refined.
But me personally, I find it exciting. But yet I love motion control and touch screen and the Wii line and Brain Age....... and I haven't had enough of Nintendo's "unrefined" generations. Because if Wii is anything to go by for the next gen, then I never want to see the "refined" Nintendo of the Gamecube era again.
So basically I'm the minority here. Funny how that works.