Report in AgoraCommodities thread says that they tape all the sides, and their prices are better anyway with no 1% "bitcoin processing fee."
Their prices aren't better, especially when you include shipping.
I just assumed Agora was cheaper since they beat you on every 1oz gold coin you sell, but it appears that Amagi is cheaper on at least the 1/10th oz gold eagles, so I apologize for categorically saying that Agora was cheaper. I don't buy silver, so I don't know who is winning the price war there.