The 2008 $50 Gold Buffalo is known to be one of the key dates in the entire Proof Gold Buffalo series. Only 18,863 were ever minted. Compare this to the 2006 which had 246,267 minted. NGC price guide values this piece at $3,900. This is also one of the few coins struck by the U.S. Mint in 1 oz of .9999 pure gold. There is almost $2,000 just in melt value in each piece. Considering you would pay the same price or more for a 2020, this is a no brainer.