I know, you heard many times my opinion on this, but i say just politely and simple after playing Kinect at the local gaming shop:
Kinect is a fad and will die fast, industry just don't need it. Games are not enjoyable compared to Wii Sports or Wii games and using menus with arms is ridiculously slow and not comfortable. I see Kinect as a great Fitness device, but thats just it. .
+ i just don't have time for this when there are games like: SC2, D3, WOW:Cataclysm, Guild Wars 2, Firefalls, Call of battlefields with Marvel vs Capcom, with Dead space 2 or Fallout: New Vegas where i spent 90 hours and will play more, Crysis 2, Two Worlds II, Drakensang:TROT, Civilizations with RAges, Killzones, Infamouses, GT5, Dragon Age 2, Portals and many other great games|franchises and i'm glad that i don't have time for Kinect or other fad.
If i will buy one of these gimmicks it will be Move, but only after 3-5 GREAT, not Good, but GREAT games. I'm not missing anything.
+ 3DS is on the horizon and PSP 2. Cayman series from Radeon and e.t.c.