Sorry to say this but I will spend additional money on this. I see it as an investment in my health and I am enjoying the game enough to stick with it.
When I finally get my 250gb console I will install to hdd to try and minimise load times but other than that I am a happy customer that finds the game easy to use, does the job and I am willing to grab dlc if it adds routines I will use.
Its not perfect but I don't think any Kinect game is yet.