There were a lot of such assumptions that amazon is going to accept cryptocurrency payment modes with coins payment as their payment gateway but no further progress is been seen. There might be such rumors just to manipulate the demand and mold the price according to our need. Ebay is a global marketplace for new as well as used goods with thousands of active users. If ebay starts accepting bitcoins or any other cryptos then it would be possible for us to get almost any commodity with the help of bitcoins and a global marketplace would be started which would accelerate the growth for the bitcoins as well as all other altcoins.