I agree,He probably decided not to ship COD or maybe he sold the item locally. But anyway he should have atleast let you know why,if he wasn't going to follow through with the agreement.I've bought,sold and traded all over the world and i always try to make my deals fair and easy for both parties involved.Alot of times it is tough to know who you are dealing with .I too have been burned a couple of times.One way to checkout a seller or buyer is to do a search and see if there is any feedback for them on any other websites or forums.I sold a part to someone a couple years ago and shipped it by Priority Mail but with no delivery confirmation.The guy started sending emails a couple of days later saying he hadn't received the part yet.After ten days of emails,I contacted the Post Office and was told there was nothing they could do without a delivery confirmation,So giving the guy the benifit of the doubt, I sent him another part at no cost.A few weeks later i saw posted on another forum that he had pulled this stunt several times before.