You have spent the time putting together the 1875 set for a reason, so why not complete it by getting the 20 cent piece out of the way and be done with it. I have never been able to complete any set of coins because there are just so many different U.S. coins that I would love to own, so I get sidetracked easily from finishing a set off. I like silver Eagles too, and now is a good time to pick some up at the current price, because silver is definitely going much higher.