I think it deserves the 9. It's still an awesome, dare I say it nearly "magical" experience when you hover your hand to go through menus and playing stuff. It's something you have to experience for yourself to really get it. Very innovative tech and for me it's something completely different than the Wii. It works a LOT better than I expected. Sure the occasional hiccup occurs, but overall (in the high 90% range) it just works and very good I might add.
There are now many good games to play and it's just a lot of fun. We played it at Christmas with the whole family and there is another plus in my point of view - my mother may not want to play Halo with me and my brothers. The bundled Adventures Game and Dance Central 2 on the other hand... :D

If you own a X-Box and liked the Wii or could see yourself waving and jumping to play a game - BUY THIS.