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hankronJim, as a seller I've found that really beat up premium cards (1933 Goudey Ruth, T206 Cobb..) generally sell at a higher percentage of book than then the higher grades (not include Mint or Nrmt-Mt stuff).  Despite the impression PSA press releases and MastroNet catalogs might give, the vast majority of active collectors have limited budgets.  Most collectors can't afford a middle grade Goudey Ruth.  But when a grade Poor example shows up in sale or auction, they know this is their realistic chance to own a card they've long wanted