Kinect is great in my family room (yet my family is still not happy about the error rate, poor performance with female voices and constant hard resets needed to keep the X1 running smoothly).
I have a den that Kinect would serve no purpose in -- don't watch TV in there, not enough room for motion gaming, it's just a place to chill out and play games or read. I'll probably go ahead now and get the $399 X1 for that room. I didn't want a Kinect in my son's bedroom, I'll probably go ahead and get him an unbundled X1 for Christmas this year. So for my family, the unbundled system is the best way to get more than one console into the house.