Well around here, it didn't appear that any retailer except maybe Best Buy got more than 10 or 15 single units on launch week. Most everyone was sold out of the single units by late Friday evening, although EVERY store still had the console bundles.
I blame early holiday shopping and an effective MS marketing campaign. Seems after Mom and Pop got off work on Friday, a lot of them that already had 360's in the house went out and snatched them up. The most popular title bought locally seemed to be Dance Central, as it was sold out at Best Buy by Saturday early morning and also at a few other stores.
The Velcro on top of the wall mounted tv worked fine, added a bit of sticky back foam insulation pad behind the velcro for stability. The Kinect is kinda heavy, but not where its going to detach from the velcro.
My wife and 3 year old son love the cat game, Kinectimals or whatever its called. The fitness game from Ubisoft, Your Shape, works fairly well too, and you can track stuff online via a Ubisoft website and set calories/time goals and challenges and send them to your friends. Since my wife is the one that wanted it, I sent her a challenge for 2000 calories in 20 days thing. Haven't picked up Dance Central yet, but played it at a friends, and it looks like the most polished title and the best party game, although only one dancer at a time.
If I didn't already have a second Xbox 360 in the house, I would have gotten the $300 Kinect 4g console bundle with the gift card at Toys R Us. That would have been a nice way to upgrade the "main" Xbox 360 used in the house and also pick up Kinect.