Yes, my bike has the Matrix 550 wheels. I looked at the 7200 and since I was just getting into cycling, I went with the less expensive model. I kinda have a tendency to do new things for a while and then lose interest.
Just wondering, what does it cost to have a wheel re-spoked w/ DT's.
So far I am really enjoying riding, so I hope I can keep it up. I can feel the difference in my body already after only about 3 weeks.
Wish me luck.