SORRY TO GEORGE GERVIN'S AFRO: I'm sorry, I guess I should have realized you were joking. It's just that this is a subject that I am very passionate about, and I actually know people who are stupid enough to say something like that.
To 2cents: how would vouchers change a parent's motivation? They wouldn't. The solution isn't to get kids out of the poor public schools, it's to fix the public schools themselves. And how do you do that? By providing more funding so you can get better teachers, better textbooks, and nicer classrooms and materials.
Vouchers don't fix the problem, only the symptoms.