Saw this item on Amazon http://www.amazon.com/999-Fine-Copper-Bitcoin-Commemorative/dp/B00DEY7JYO/ref=sr_1_4?ie=UTF8&qid=1388288211&sr=8-4&keywords=bitcoin It is a commemorative Bitcoin. Purchases now possible only with cash or credit. My guess is I will be able to buy this item on Amazon using Bitcoin for next year's Christmas season. I am interested in other estimates on when this will happen.
Amazon won't accept it unless everyone else has first. They have their own redeemable "coins".
If it gets truly big, and truly global, Amazon won't have a choice though. They would need to do it because they completely rely on quick shipments, quick payments, and high volume.
They won't ignore the new wealthy elite.
If I had to pick a date it would be at least 2 years down the road.