"Costco" was Sam Walton's idea, based in part in what he saw in base exchange operations which he tried unsuccessfully to breach. Ergo a dedicated group of Members/military or civilian whose membership got them special prices, programs,priviliges etc. Presto Sam's club was hatched circa 81 or 82. First store in Midwest City ,Oklahoma right next door to the huge Tinker AFB! As to the textbook deal, I check with my wife and get the Prof.'s handle on the texbook deal. Poor State Farm all of our kiddos are out of College and OTO! Have'nt seen a textbook in awhile. O.