The fitness games--no board needed, no controllers needed, no arm or legbands needed--very nice.
Kinectimals--my daughter will absolutely love it.
The dance game--I'm going to have a blast with it, and it'll be a nice way to get some exercise in without thinking about it. It's Dance Dance Revolution without the floor pad, which will be great, considering my puppy chewed through the cord of my first DDR pad. >.<
Am I going to get this? Definitely.