I would say that there is an angle going unappreciated in this discussion. There are two types of kinect games. The first type are the games built entirely around kinect. Which Microsoft was interested in promoting heavily. These games are all about moving your body or saying key commands. The second type of game will use kinect as a control enhancement. Where the controller is still the primary interface, but kinect will lessen the load, or add other functionality.
Say for example kinect might be used in a first person shooter to replace the second analog stick which usually functions as a camera control. Instead the option will exist for kinect to track your head movement to move the viewing field for you. Perhaps simple quick hand signs may allow you to change your equiped weapons or to use stat altering items. For example in a game like say Oblivion you might have a couple dozen hand signs or voice commands for different spells. Allowing you to bypass pull up pause menus.
Honestly I don't think the skeletal tracking will ever replace the fidelity of a hand held controller for core gamers, but the functions can be used modestly to greatly enhance core or hardcore games. These games shown are just the games that are being totally built around kinects. The games that will use the device for add on functionality will probably make up the bulk, and frankly those are the ones that will really excite most gamers here. Expect well over thirty games to use this peripheral before the end of the year, and expect it to be a near fifty/fifty split between full use, and partial use.
No it isn't overboard this is just what the casual gamers will be interested in thats all. They as a group aren't very original in what they want. Look at the Wii, and what games sell well on that console.
