Well, money, mostly. We've got a family doctor and minor emergency care set up, but no formal health insurance. If I'm paying out-of-pocket, I'm inclined to stick with the traditional massage as part of my wellness routine unless there's good evidence to take on this extra procedure.
In my limited experience, PRRT is usually not a long-term process. Clients usually get relief quickly or not at all, so you are not likely to be continuing to spend money on something that isn't working for you.
A PDF of a case study can be found here:
http://www.theprrt.com/prrt-links.html... but it's not exactly top scientific journal quality.
It pretty much can't hurt you, and could help you a lot. Worth a try, anyway.
VP