It's a tough call. A PhD might make you more marketable, but I don't know if a CAGS would (I just don't know anyone that has one, but I'm at an R1 institution). Is there anyone at the CC where you work that you could talk to about this? I'm not a CC person (came from H.S. math teaching to getting a PhD thinking I'd get a tenure track job teaching math ed or inst technology.) The jobs are few and far-between right now. Ugh.
I'd want to know how long it would take to finish, how much it would cost, etc. I've had my PhD fully funded, otherwise I wouldn't have done it. It's been a long slog, and now that I'm almost done, I'm not sure what I will end up doing. The jobs are just not really there in my field this year. (at least not in the places my family is willing to relocate).
L, mommy to my one and only, super-sweet boy, G 6/08
I'm pro-big bird, and I vote.