Did I see a post from you sayig you had 1968, 1969 and 1970 Topps baseball dups or was it someone else? I have a want list for the 1968s and 2 small upgrade lists for the latter two. And I have the Ryan and Mantle for the 68s which is proof I do follow your set building rule. LOL
I am also working on some 70s and 80s hockey sets. I don't think I am working on any older basketball sets right now but I can always be tempted by basketball cards from the vintage era even if I don't need them for sets.
For me my set needs come first but I am very open to cards I would rather have than the ones I'm trading
