Dameon, I too have made the same distinction between spanging and busking in the past, I also busked before I ever traveled and one point in my life was a professional musician, as in I paid for an apartment, drugs and food with the money I made giging. All I have to say is that no matter how you look at it, busking is still a form of begging, ESPECIALLY if you're expecting to get paid for it. I'm a musician because I love the art of instrumentation and the positive effect I can have on people through the use of that art. When you see me busking its not only because I want money, but because I LOVE playing music and will continue to do so till the day I die. If you find it draining, its because you expected to be rewarded in a monetary way for your efforts and didn't feel you where justly compensated. Busking is like one long audition, that you sometimes get paid for. No one asked you to come out and play, your hoping to prove to people that you are worthy of compensation, your still spanging people, just in a classier way.