First, I thought the C2 used water resistance? It doesn't really matter though.

As much as I know how great the C2 is, it's also a bit more than I was willing to spend. I'm not a pro-style rower or anything, I'm just looking for a good cardio workout to complement my MA training. I think $900 is a little much to spend on that. Has anyone had good experience with something in the less expensive range?