I wondered why so many people bought over 100% from the original price. While you can easily buy from the mint?. There are still a lot inventory from the mint.
At least for a time, I think the Mint sold out and they were unavailable. I paid a $4 premium for mine on EBay.
To add to that ^ Some people just prefer not dealing with the Mint, for whatever reasons. Hence my 2 for sale among many others....