Do you have a list of coins you would love to add to your collection, but you realize you’ll never be able to get? For example, do you collect Lincoln cents but will never be able to afford a 1909-S VDB in a grade that would match your other coins? In my case, one of the earliest such coins was a decent 1901-S Barber quarter. At one point, I had a circulated set of Barber dimes, quarters, and half dollars with a single hole: the 1901-S quarter. I never filled that hole.
On CoinTalk recently, I ran across a thread headed similar to the