Actually, I think Kinnect and the Kinnect 2 are just genius. (WTF??? I hear you cry)
Just not for games.
Kinnect is a test bed to move us towards affordable 'Minority Report' type tech in the future. Microsoft is planning ahead and getting the drop on the other tech companies to use this style of interface for more general purpose uses, the tech level beyond touchscreen.
It's in its infancy to be sure, the limited uses for games are apparent at this stage and only really appealing to the casual market for fitness and party games.
For this generation and the next, controllers rule, but after that? We'll just have to see.
I jumped, O my brothers, and I fell hard but I did not snuff it, oh no. if I had snuffed it, I would not be here to tell what I have told.