Usually best to start a little lower than the price you want it sold for, the price is determined by people who are really interested in this coin at the time it is available and how much they'd be ready to bid for it.
Also MS64 is your own estimate, not one of the highest ratings to start with, I see your finger on the coin itself in the picture, has it been handled correctly?

A lot of small details can make a coin more valuable to the eye of a potential buyer.

And yes, the BTC pump is also influencing the current physical btc market, negatively.