I think the other point to make on this is that American collectors/flippers tend to fight out over a raw high grade in the hope that the eventual slab number will make them a tidy profit. In my mind i'd prefer a Secundo to say a Jubilee or Widow head, also look at the 1934 Wreath crown, 934 minted but there's always one available somewhere because people think they have a potential of growth but because they are so often for sale i think that's stagnated a little.
Between the 3 of these types i'd buy the Secundo, just my personal choice, i have one Viccie Jubilee head Crown and only because it had huge eye appeal, haven't ventured for a Secundo yet and i won't touch a 34 Wreath whether slabbed by LCGS, PCGS or NGC, it's such a boring design and has nothing going for it for me. Also take into account how many of the 500k Secundos are around in high grades, i'm guessing not a lot due to the amount you see in low grades.