I have not bought a bow on Ebay in quite some time and when I did it was from a liquidation house that was somehow affiliated with Martin archery. The bows were brand new overstock from past years. On the other hand, I have sold quite a few of my own bows on Ebay and have not had a negative experience so far...knock on wood. The best indicator, I have found, of the product and seller is the feedback provided by others from previous auctions.