I come from a culture where the price is always listed. If I don't like the price, I'll either find a better deal somewhere else (shop) or not buy. Any time I'm forced to barter with a person I lose, because I do feel guilty about it. I feel bad that you won't get as much money as you think you should, despite the low balance in my bank account.

Some people seem to feel they have a right to help others get ripped off because they're not schemers. I don't feel I owe you that.