I completed a Registry set of Peace dollars
in 2014 of both NGC
coins. There was nothing special about set as it was white Peace dollars
that ranged from AU55 to MS64. I paid $4355 for the set. I sold the set in December of 2019 on eBay as individual coins for a total of $3585. I lost 17.7 % plus eBay fees, paypal fees, and shipping cost. For the same time period the PCGS
3000 coin index went down 17%, so the 17.7% that I lost follows the general trend of the coin market. The biggest single loss was the Peace dollar
key date 1928 NGC
MS62 that I paid $599 and sold for $399. This was not an investment as I was collecting something that I liked.