As a buyer, I never tempt a seller with more money, because I wouldn't want that to happen to me. As a seller, I always honor a deal, whether verbal, handshake or otherwise.

However, with that said, I agree with the above poster about some buyers. Recently trying to sell some items, and it's a pain when a buyer asks for pictures, agrees to a price, and then suddenly drops off the face of the earth. What is wrong with people that they just can't own up to not wanting something anymore. Things happen, I understand, but have the courtesy to send a 5 second email, to say, sorry, I can't honor my purchase anymore, please accept my apologies. And don't use the excuse, I've been away from my email for a week. BS. With today's connectivity, I find that hard to believe, and if you initiated a buy process, how about you don't leave the seller hanging, and stay on top of the communication.