That is one of the best features of this life that I've set up for my self!

I have to remind myself of it often, because my friends with real jobs all make more money than I do. They are an exception, though; most of my friends are broke, self-employed musicians WITHOUT the benefit of a solid teaching practice

It seems to me that small music schools overcharge the students and underpay the teachers. I did teach at a school for a couple of years, and got some good ideas and confidence about how to teach and run a practice. But as far as getting advice from The Boss-- he was helpful to a point, but as I remember, his philosophy is much different than mine is now. So if I still had that boss, it wouldn't be a relationship where I would seek advice. Having said that, I do feel like I could use some advice, someone to criticize my teaching, my methods.
I don't find running my business to be all that laborious, now that I'm established. My tax guy is great-- I add up deposit slips and receipts, calculate some mileage, per-diems and hotels (for performance trips), talk with him for a few minutes, and it's done. I don't advertise at the moment because my schedule's full, but even when I did it was just a matter of putting a couple classified ads out, and hanging a few flyers. Scheduling can be a pain, and enforcing the policy of payment for no-shows can be a pain, too. Getting my practice fully established was tricky, and I almost gave in to the temptation of working for somebody else, just to have a couple full-days of students, but I'm glad I held out.
Musicrebel, I can't resist the opportunity to make this overused internet joke:
In Soviet Russia, piano plays YOU!

Jokes aside, I find your reply interesting on two levels. First: you once again notice the disrespect for music that is built into American society. Support for music and the arts is undeniably a strength of many former and current communist countries. The flip-side of that is that perhaps some other professions, like doctor, might be financially undervalued.
The second point: you are usually talking about the inadequacies of traditional teaching, and here you are yearning for the rigid musical
establishment.