I think you pay for a lighter bike and better/quicker shifting components. One of the reasons I sold my Rockhopper to a friend was so that I could get an Epic that had hydraulic disc brakes and better shifters. Oh, and the full suspension too. I had toyed with putting better components on the Rockhopper but knew in the end I would prefer a full suspension bike. I've been very pleased with my decision. I think that if one can, one should consider the mid-higher end models.