Microsofthad to drop kKinect to get the price to $399
If their game division was really doing that good they would have dropped it to $399 with the Kinect still in the box
When companies release systems, it usually takes a couple of years before they start making profits
And while both these systems are selling at a record pace, its only been 6 months

Microsoft hasn't even released a game that THEY would profit off of, so I'm not sure how you THINK these things work. But its not like that.
The only reason they dropped Kinect is because enough gamers from the sony side claim they would jump ship if there was a cheaper version
We'll now see about that. Anyone who cops an XB1, wants a Kinect. Even if they don't know that YET