[MattyC]

I think the demand for the Mantle relative to any of those Ruths is more than enough to offset the few hundred greater in pop. Not to mention those four Ruths are four offerings of the same player in the same set, versus the one Mantle in the 52T, and it being the key card.

I'd also hazard that the Mantle has far more crossovers than any of the Ruths, which would mitigate the pop disparity somewhat. But end of the day, sheer pop data is just one part of the equation. In this case I think other parts, such as demand and proximity to player's rookie year, outweigh the pop comparisons and speak to why the #311 is worth more grade-for-grade.