GPL is not just stuck with hobbyists. It also can rely on college students, of which there is a seemingly never-ending supply. Eventually the students will ei

GPL is not just stuck with hobbyists. It also can rely on college students, of which there is a seemingly never-ending supply. Eventually the students will either have to find a job (assuming they are not being perpetually subsidized by Mom and Dad), or become leaders in the GPL community and make money by writing books and doing speaking engagements; and since there is only room for so many leaders, only the most fervent ideologues will rise to the challenge.