I think it's impossible to get paid doing your passion.
I think I know what you mean, and that's probably true for the vast majority. I once had a passion for photography and was even doing it semi-professionally....enough to realize that turning it into work would take the fun out of it. And it doesn't pay that well anyway - unless one is very, very good. Even more true now, with the advent of digital photo technology.
Sure - some people get lucky and their passion pays off. But they are the small minority. There comes a time to be realistic...or starve.
