The Kinect is now a part of the Xbox One. It is like the Wii mote for the Wii or the tablet for Wii U.
The Wii Mote is a controller isn't it? Something that has shipped with every console ever made in history? I have a Wii U and the tablet is not required to play games or operate the console, so again, how is that comparable?
Micro$oft gave a big frick YOU to the 90% of the gamers that don't give two shits about motion gaming, added some face recognition stupid shit, and some voice commands and forced you to buy.
They laugh at you like little sheep.
Sony did the right thing in allowing humans to have a choice in what they buy. A Kinect or Eye is an accessory, if you want motion gaming or those other gimmicky features, you can purchase it anywhere for $59.99 or whatever it is like last generation instead of having it shoved down your throat without a choice.
"Hey guys we invented this new product, it's not very popular at all, so in our next product we are going to raise the price the amount of said product and force you to buy it if you want the main product."