[larsberg]

I'd recommend staying with it. If you're young (i.e. straight out of undergrad), it'll seem like the ~5 years you have left is a long time.

As somebody who spent some time working and then came back, though, it's just a short hop. The Ph.D. will only open doors for you in the future, and the six-year commitment is not an easy thing to do the older you get, with greater lifestyle expectations, family situation, and the general crotechety-ness that comes with time.

[anongradstudent]

I'm not that young. I spent a couple years picking up an MS and five years working before starting the PhD. Five years still seems like a long time to me. It's nearly 10% of my remaining life expectancy!

Sure, a PhD will open some doors. So will five years in industry: http://news.ycombinator.com/item?id=1373334