I am not concerned at all what prices other w/c's charge.
I look to charge what I feel is a fair price for myself and for the customer. If anyone comes along charging more (or less) I don't worry about it in the slightest, as I have an excellent relationship with the vast majority of my customers, and would never lose them on price alone, no matter how it may compare with others.
I hope this doesn't sound arrogant. I simply mean that my customers are very loyal and a pleasure to work for, and as such I try to look after them in a way that I do a good job for a fair price. The vast majority appreciate that and say so.
John.