This doesn't preclude giving the people who might not "buy" one $50 to spend on whatever the hell they want and then having one of the things on offer be a $200

This doesn't preclude giving the people who might not "buy" one $50 to spend on whatever the hell they want and then having one of the things on offer be a $200 Chromebook with a $50 price tag on it. The problem of "someone has no money" should be addressed by giving them money not a Chromebook. If a $200 Chromebook isn't worth $50 to them, I'd rather they keep the $50 and buy something that is worth $50 to them.