It's hard to say exactly how many will be made but since they are out now, I wouldn't count on being able to get one from a retailer at Christmas time unless you get one from Amazon.com or something like that.
I was interested, as I'm a big Star Wars fan & I really like the design, but... In the end, it's just a little too juvenile & (honestly) geeky for me to include as part of my A/V gear. I put all of my Star Wars figures & other collectibles away long ago.
The Star Wars console would seem more like one of them than a console. Besides, I have zero desire to purchase a Kinect and the game doesn't look like what I thought it was going to be.