I'm the same way. However, for cars or larger items, if someone comes through and offers a lot more after I've made a deal I'll ask the lower bidder if he would like to keep the deal or take half of the difference in cash.Yeah, I could have worded that better. If I have something for 600 and someone goes 575 and I say yes, I consider that locked in even if someone comes later and says "I'll give you the full 600". I'll grump to myself a bit, but if I told the first person "deal" then I honor that deal.