[MattyC]

Call me crazy, but if you place the lone 10 right beside a strong 9, the cards look identical. Especially the way the 1968 design's burlap pattern is so forgiving to the eye on corner wear.

For some cards, the jump from a certain grade to the next is such a huge sum of money-- for such a small increase in card quality.

In fact, one could assert that the jump from 9 to 10 is among the biggest in price, but among the smallest in terms of card quality. Heck of an inverse relationship there.