A lot of people bemoan the poor actors (usually no real mention of the stagehands or musicians) at going to be out of a job, can't put food on the table, etc.
When I was in high school, and there was our "career day", I sat in on the talk given by a local theater worker (she used to do some acting, but then went on to work in the offices as the director of their youth programs), and she said something very important to everyone thinking of working in the theater community, whether acting, directing, working backstage, etc.:
"Don't do it. Don't do it for money. Don't do it for fame. Do it because you love it and it fills a hole in your heart and soul."
I think it's all too clear that there are inherent risks with working in the theater community, and steady employment is not always a guarantee. I'm sure almost everyone working on that show has a b-plan, or at the very least has some idea of what they might do if their show closes.
Xanadu! Can't cry on cue!