A friend of mine is looking for a tutor for her DC, She has found one she likes the sound of but was moaning to me about how expensive she is.
Obviously its not the same, but I used to be a self employed cleaner, and occasionally you would get people acting all shocked at my hourly rate and try and haggle me down. Its not like I was or this tutor will be laughing all the way to the bank, and the tutor has more work to do than just turning up for the hour. I also think that with any service, if you get the results you want then its good value, rather than going cheaper and being dissatisfied.
So its touched a nerve, and I can't be an objective friend 
if you have or have had a tutor, how much did you pay? We're in the SE.