10 SECRET REASONS WHY IT IS GOOD TO BE A DOCTOR:
1 . Because you get to see everyone naked
2 . Because it is the best excuse for illegible handwriting
3 . Because after working with patients, you realize that you are not as neurotic as you thought you might have been
4 . Because lots of people are dying to see you
5 . Because even if no one sends you birthday present, the pharmaceutical companies certainly will
6 . Because the market is always booming. Even if we were eventually run out of diseases, we could still rely on traffic
7 . Because it is so easy to avoid tedious social obligations. Just say,”I’m on call!”
8 . Because you are the first to know whether it will be a boy or a girl
9 . Because wearing a stethoscope around your neck increases your sex appeal
10.Because God heals and the Doctor collects the fee! 
Taken from FEC mailing-list.
And I never thought that wearing stethoscope around my neck would promote my sex appeal. :p