As one of the people with an "army of stars", I have to say that comments that come with the rep are worth more to me than the visual. Sure, I think there needs to be some type of visual, so that others can see who is receiving what - but I have absolutely no problem with scaling it back, topping it out, or something similar. It's nice to be recognized for positive contributions - but the rep power is starting to grow exponentially, and I think an arithmatic or even geometric progression would be much more appropriate.
I'm with Kacey. I like the rep system, but I think there should be a place where something tops out...