I have both FABLE 3 and the KINECT.
Fable 3 is good, but I liked Fable 2 better, which changing how you look depending on what attacks you do. In Fable 2, ranged attacks increases your height, melee increased your physique, and magic gave you some kinda aura around your guy. Fable 3, you don't have that. I DID like how co-op you can actually see the other person's character. That was a plus. Still alot of screaming annoying kids on there. Why parents give their 8 year olds headsets? I will never know.
ANYWAYS, the Kinect is actually alot of fun. KINECT SPORTS is the best SO FAR, at least from what I played. It's the only game I actually played on the Kinect, which ALOT of people love it as well. There's a free add-on for the game as well, but I forgot what it was. Lol.
I read on another website that since the Kinect takes pics of you while playing Kinect games, which the Kinect will ask you if you want it to do so and send it to MS (Microsoft), people were working out naked infront of it. Lol. I can imagine their reaction, both the user and the people working at MS. Lol.
I hope this was at least SOME help. I got the KINECT for $100 online, which it comes with ONE game with it, which I have yet to play myself.
ALSO, people asked me about this MANY MANY MANY times, but you do NOT need the newer 360 to use the Kinect. Someone keeps telling people that you need the new 360, and it's a lie. If you hear someone tell someone or you that, drop kick them FFS. Lol.