Along with the comment that Buck Beaver made, I am reminded of something that Rick Lyon was recently quoted as saying in a book:
"I always did the school plays. I played music. I've always done a lot of drawing. And typical puppeteers do everything: design the scenery, write their own material, create the puppets, and ultimately perform, too. So for somebody interested in many different kinds of art, puppetry is a good way to combine those interests."
So, it's a lot of hard work, but you can make a decent living being a puppeteer. You deffenitely won't be rich, but it can be done.
Probably most of the puppeteers on here can recognize themselves in that quote. I sure could, even with my crude creations (the films I've done have never come out as well as I would have hoped).