By Chuck McAnulla (COMBO #27) – HOF: Perhaps those letters mean nothing to you. Perhaps you prefer ABC or XYZ. As a card collector, you may better relate to IOU. The “HOF” designation does, however, have a magical connotation for sports card collectors, since it signifies that the players so identified in a given card set’s checklist are members of the Hall of Fame in their particular sport. Hall of Fame athletes have traditionally been of greater interest to sports collectors and their cards more highly prized, monetarily and otherwise. Prices of very rare tobacco sports cards can run to six figures—yes, all to the left of the decimal point!…