My Ph.D. is in communication studies. It took me 15 months to do my M.A. and 3 and 1/2 years of classwork and three years working on the dissertation to finish the Ph.D. (The dissertation took so long because I was working full-time while I was writing).
It was worth it even though I'm no longer teaching full-time. Given the consulting I do, I get to teach every day--it's just not in a classroom. I also get to use what I've learned about human communication to try to do some good rather than simply writing in academic journals (that has a place, but it just wasn't for me).
What do you want to get your degree in?
I am leaning towards business organizational mgt. simply because my BA and MBA are in Business. The other one I thought of was something theologically based because the PhD would be for personal reasons only and would have little bearing on my work.