eBay has changed the Best Offer rules so that they're no longer binding on the part of the buyer. Used to be that once the offer was made and accepted the buyer was committed and the sale was considered finalized. Now after the offer is made and accepted, the sale isn't final until the buyer actually pays. And if he doesn't there are no consequences. In the description for "Best Offer" sales they continue to describe it as being a binding agreement: http://pages.ebay.com/help/sell/best-offer.html http://pages.ebay.com/help/buy/best-offer.html But then when you dig in to the details you see that all "Best Offer" sales are now part of a new beta-program with the changes I described above. Sellers can not opt-out of this beta and the new rules have clearly not been promulgated. eBay says this benefits the seller because he can now accept multiple offers, including possible higher ones, but if it all comes down to a race over who pays first, how is this a benefit? Especially when there are no consequences for not paying. And if they still insist that its a benefit, why not make the changes clear and obvious? Seller beware.