For what it's worth, the SCD (2008 Edition) lists the '64 Mays at $75. As mentioned previously, the '62 is listed at $50. For the '64 Auravision Records, SCD claims the "Mays record is unaccountably much scarcer than the others." Based on a comparison of the values (e.g., $15 for '62 commons and $6 for '64 commons, $100 for '62 Mantle and $25 for '64 Mantle, etc.) one could definitely argue that the '62s are scarcer than the '64s.
Mike
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