The way I see it, the grade is worth like 1-2% of the total value of the coin. In the end of the day there are only so many of these coins minted and their rarity and interest will grow as the ecosystem matures. I received bunch of offers from 17-18.5 but 19 is the absolute lowest I'll go.

I'll probably have it regraded though just because of the date. That will be a 2-week process I think so I wanna note that.