Believe me when I say I am only complaining about motion control and the like not because there's any inherent flaws with motion control, but because I know what most game companies will do with it.
Look at the Wii and its massive shovelware. It just doesn't seem worth it when you go to the store and see 1 or 2 games you'd like to buy and a million and one party games that both svck and you wouldn't even have more than 2 controllers to play anyways (I don't even know of a game that you'd need 4 Wii motes for on the Wii. Brawl can use gamecube controllers, which is awesome, since those feel far better than the Wii mote controls).
Basically, we just get tired of seeing NEW and EXCITING stuff from the gaming industry because we know exactly what large companies will do with, and to, those services or products; stuff as many shovelware, crap, rehashed games on them with stickers that say "JUST FOR KINECT!" or "JUST FOR PSMOVE!" without adding anything new (or, really, anything worth buying in the first place) to those products.