Something to take into consideration (and this goes for all aspects of the hobby), is that the majority of artisans do not do this for 'work', but rather their spare time in the evenings and on weekends. Throw family, church, soccer practice and Scouts in the mix, and their spare time can become quite expensive.
Bill is single, living alone, and has a great day job. He does not have any extracurricular activities. His spare time is not worth much, because he has so much of it. He might paint a helmet for $100.
Jim has a wife, two little girls (both into soccer and ballet), and he is a youth minister at his church. His spare time is precious, and would cost quite a bit more. Jim's painting price is $600.
A lot of people complain about the high prices for services, but I urge everyone to think about what their own 'spare time' is actually worth.