I bought one of the $20 20 pack multibrand retail boxes over the weekend and the bonus item was a set of 1999 Upper Deck Powerdeck Athletes of the Century... 4 digital cards of Michael Jordan, Wayne Gretzky, Joe Montana and Babe Ruth, along with an oversized card featuring all four of them. It orignally retailed for $19.99, but I couldnt find any info about these on beckett. Does anybody know if they're worth anything?