How much is too much for a hair cut?

I've been getting my hair cut by the same person for years — and I'm very loyal to her (not the least because she once sacrificed her lunch hour so that I could settle my 6-month-old daughter before returning to the cutting chair).

But over the years, her price has gradually climbed; it's now close to $60 (well over, once we factor in tips). If all I'm getting is a trim, what's the point?