Most people don’t realize that it takes 3 to 6 hours for a set of regulators to be serviced! Just the ultrasonic bath takes half an hour. It IS what it IS! When I am hanging around my local shop (which is 60 miles from my house), I cringe when new customers say "Oh I saw this on eBay for. . . . " It may sound cliche, but what is your life really worth?
To put things in perspective I usually draw the following comparison: You spend $40,000 on a car and still need to bring it in every few months for an oil change, lube, air filter, tire rotation, etc which cost on average $50. You don’t think twice about it. It’s expected. But you purchase a regulator setup for $500 to $1000, and you pay $70 a year (or every other) to do an complete overhaul; where all the soft internals are replaced and you complain.
Ben