Sure , I originally started out collecting the War Nickels but soon found that I may want to continue with the full set in MS 64 they were very reasonable in price for someone who is on a budget. Then after a while I thought I may want to go for 65FS coins for a few cents more 64s were not that great looking.. Then I found that 66 was my best all around coin to look for. MS66 are nice looking and quite a lot of them in FS and if I am careful and shop around I can get them for a good price. There are some years you can't find 66FS coins without spending a arm and a leg for. With those I just get the best I can find and hope there will be a deal down the road. I work on the full set mostly because it is only 206 coins but sometimes I find proofs for $2 and $3, I just cant pass them up, Here is the one with proofs set I am working on it is a monster 297 coin set I may never finish but it is fun. https://www.ngccoin.com/registry/competitive-sets/374476/