I'm sorry I don't have any advice on the group dance classes/competitions, but I just wanted to add my two cents and personal experience about quitting. I danced for years, from age 3-15. At age 15, I got very bored and probably should have been moved to a more challenging dance school that was more competitive. I was the kind of kid who needed a push from my parents or instructors; I excelled at most things I did, but I wasn't always intrinsically motivated and lacked self esteem. I went through a rebellious stage, and ended up quitting dance. In fact, I never danced again. It's one of the biggest regrets of my life. I really wish my parents had forced me to continue. I'm not sure how I would have handled that, but I often wonder if I would have overcome my ambivalence towards dance if forced to work through it or offered another alternative.

Maybe your daughter just needs a change of pace. Is there another dance company nearby? If you're already spending $8000 per year on dance, could she stop the competitive dancing and move into private lessons instead?