I'll continue to say that:
1. The Kinect's not a big deal for gaming. Unless you want one of the niche-genre games that runs it exclusively, the Kinect's not meaningful. It's certainly a nice convenience at times, but I'd gladly trade my Kinect for an extra 2 games (given the $100 premium).
2. Kinect Sports Rivals did nothing but show off bad tracking a failure to deliver on promises with the new Kinect. It still requires a lot of room (both in ceiling height and room width) to play. The Target Shooting was highly inconsistent and inaccurate. The Rock Climbing got confused with which arm was which frequently. The Bowling was OK, but you had to make an unrealistic, hip-level motion to get it to track correctly. Wave Racing worked fine, but was overall boring (mostly due to lack of venues). Soccer failed at tracking kicks--and, more frequently, headers--with any consistency. It needed a LOOOOT of lateral room to be playable, because it asked for about 10-12 feet to fully cover the goal. Tennis was OK, but almost too forgiving. What's worse is that they didn't include the sports you'd expect the game to be made for--baseball and golf. It ended up being a game I enjoyed at first, eventually sold, then started to realize more of my memories were of the frustrations with the game than with the entertainment.
As for privacy concerns, I'd call them semi-legitimate, but mostly overblown. You can always unplug the device when not using it, if it worries you. However, those who say that there's no chance for privacy violations are way too trusting of the nefarious members of the population, even if it's an unlikely occurrence. However, I'll agree that a phone is a bigger concern for privacy than a Kinect. It can track your physical location, while having facial recognition and sound-recording capabilities folks would worry about with the Kinect.