I've never gotten anything with monetary value out of a report card. Only allowance to play on my computer at certain times, which I bypass frequently.
I get A's because I want A's, and their way to loving easy to get. I barely study, do my homework last minute, and I don't do extra credit. But I listen, and do little things that make all the difference. My one B is due to me getting in that class a week late. Other then that's it's easy going.