While I don't know the pricing schedules of all the Measurers in my region, I council a structure similar to what Gene describes (my course map pricing is scaled to the course length as well)
I do know of one Measurer who is exceptionally low priced. He's older in age and provides the service more out of altruism.
In my personal experience, I try to structure the relationship between myself and the client is such a way as to demonstrate that of a professional service. I provide a clear and concise proposal of what service I'll be providing and what the deliverables are as well as the payment terms. I require execution of that agreement and a deposit to establish a clear Accounts Payable channel before measuring. I arrive as schedule to conduct measurement, mark the course accurately and provide what I consider to be an excellent course map. In addition to protecting my exposure, I do all of this to demonstrate that my client is receiving a professional service and to ultimately justify the fee that I proposed.
I believe that we provide a professional service that falls in the same realm as a surveying service and that our pricing should reflect that. We should do everything that we can to ensure that we provide an experience that reflects such a service.