[smsm42]

Additionally, paying a price of 100 means the payer does not _really_ care about the price, they just say "here's an expensive item that I totally can afford to buy, and don't care how much does it cost, let's just make it an arbitrary 100". Paying 95, however, means "I know _exactly_ how much it costs, and I am willing to spend my attention on haggling for the extra 5 (even if it's done by a servant, it still reflects on the owner), which means 5 is a substantial enough sum for me to care, which means I'm not as rich as I pretend to be".