New coins and commemoratives....I can't believe how much more the premiums people are willing to pay for a 70 coin vs. a 69. For instance, I am looking at the National Park Saint-Gaudens Commemorative (Mercanti)...you can buy right now a PF69 for $95. But PF70's are being bid above $150 as I type this. I can't tell the difference....but it's an extra 30-35% (maybe more !) just for the 70. Maybe it's because they aren't going to be buying many of these like stacked silver or golds so they want at least 1 coin that is "perfect." Have any of you actively looking at moderns (coins or commemoratives) or dealers who sell this stuff noticed this phenomenon ? Is it new ? Or has the extent of the 70 Premium always been there ?