Posted By:
MVSNYCBarry- i don't have a theory, but if i had to formulate one, i would say that it is the same reason that T206 Wagners are almost always found in lower grades: rare cards were usually handled more over the years, changed hands alot, were simply physically held and handled by many people, thus creases, rounded corners, etc.
for the record, they all were printed on the same stock.