When I tell friends and family that I am pursuing a doctorate, I get two possible responses: "Very Cool!" and "Why?" The "Why?" is not an easy one for me to answer. I am not a starving graduate student like my father was where I need the credentials to make a career. After all, I have 15+ years of experience, the majority at the management level. I make a good living, have a job I really enjoy, and have been on a pretty steady upward path.
I can come up with several things a doctorate could do for my career. I miss teaching, and it would make it easier to do that on the side. Also, it probably would provide some boost to my career where I work. I could also become an insufferable ass at work and make people call me “Doctor”. Yet, none of these are overwhelmingly compelling reasons to invest such a massive amount of time, effort and to a lesser extent money (thanks to my employer’s very generous education assistance).
The only real answer I can give is that it is something I have always wanted to do. Even as an undergraduate I looked into staying in school to complete my graduate work. Had it not been for being in Washington, DC with such a lucrative consulting/IT industry I might well have done that.
Throughout my professional career, I never took my sites off wanting to eventually pursue a doctoral program. Several years ago I went back to school for my Master's, but that in no way tempered my interest. Even while preparing for my project defense, I remember discussing with a classmate how much we both were looking forward to pursuing more education.
It is fortunate I have this internalized desire, because otherwise I think I would have very little chance of finishing. The level of rigor in the first class was at a level far beyond what I had experienced, and knowing that I could drop it at anytime and still have a job might have been very tempting.