I never considered a single sale a determination of market value anyway. The $3 million for the Mark McGwire ball was just what one idiot with money to burn was willing to pay. Even though someone paid $3 million, the ball was never worth $3 million. Didn't matter what it sold for. Prices often go down drastically when one big spender leaves the market or the two people who want the card the most get theirs. Good statistical analysis usually starts by throwing out the highest and lowest numbers.
Last edited by drcy; 01-29-2016 at 08:24 PM.
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