I posted this response to a slashdot article asking where all of the old programmers go:
I'm not quite 40 yet, but I am approaching it in the next couple of years. I don't really enjoy coding as much as I used to.
I want to go home to my family and friends. I want interpersonal relationships that enhance my life. I don't want to dedicate my life to learning the increasing amount of new technologies. I can accomplish more by making sure the people working for me are coding well and producing good work.