Wow I hope that "Power Spinning" or whatever doesn't take over the gyms - I think I would hate it. I so dislike canned music. My favorite instructors have all made their own great tapes.

Thankfully I have never felt compelled to always follow the instructor. SOme dont understand cycling like I do. I won't do anything that risks injury (such as "piston jogs" which are real knee busters). I'm in class to build up my aerobics and fitness - I could care less about being able to do every spin, jump, jog the instructor can do. I know on the road, I can blow him/her away. OK I do have some instructors I know for a fact are cyclists and can truly blow me away! I love those classes!