I've known quite a few MSE's (Master's of Science in Engineering) and they ended up in management positions. Bean counters.
One of my closest friends had a BS in Economics. Just about useless. Went for his MBA and has had pretty good luck with it. Went to a value-oriented program, got scholarships and assistance-ships, and did a work-study program that developed into a decent per-diem job. Good pay, works 40 hours a week, just no benefits. Not permanent either.
Thing is, if you go to school for something that's in demand, you shouldn't need the masters. If you go to school for something that isn't in demand, the graduate program is the only way to distinguish yourself from the rest.
EDIT:
Funny that I'm the first reply in this thread considering the other thread I was interested in the Trades without education. I'll say this though, I wasn't sure I wanted to go to college, tried it, did horrible, took two years off, went back, did excellent, got an Associates, continued to get a Bachelors. It's definitely been worth it. It's difficult to get a "Professional" job without a college degree, but that doesn't mean a white-collar job will make you happy either.
If you love what you do, but the pay or positions are limited by the degree, then get more education.
Don't get more education because you think it'll make getting a job easier. You might not like the job.