Since he was concerned about how much he would get for it, perhaps he really is cutting back financially now?
I think it’s just in his nature to make sure he gets the advantage in every situation. Even a fair deal for the other person leaves him feeling short changed. It’s how he treated people on here, his wife, his in-laws, his landlord, getting others to pay in advance for his book, and on and on … The idea of someone getting his car for a penny less than he perceives its worth would just annoy him too much. I really wonder what he pays Tibor. It can’t be much, and he probably resents the little he does pay.