I've been working on a PCGS set of low to mid-grade MS Peace dollars - 60 to 63. Part of my self imposed challenge was to have it 'affordable'. Even after learning that a nice AU-58 can be more desirable than a low MS piece, I started with the goal of having MS coins. That is where I want to stay. These last three coins are proving very difficult. I've spent the last 7-8 months searching for a 24-S, 27-S and a 35-S. Could the common mint mark be a clue to my order? I've found ebay to have companies listing the SAME coins *over and over*... It's nuts! I've watched the same coins re-listed for literally months on end!! Does it really boil down to just waiting for THAT coin?