1998 factory sealed Hobby Box of Topps Tek, an 8,100 card behemoth that featured 90 subjects, each with one of 90 different background patterns, all on acetate stock. The packs contained "diffractor" parallels that also embraced each pattern but odds were never released for these, although these parallels are believed to all have been issued in low quantities. While confusing, the cards and parallels are attractive and many of the Hall-of-Famers have developed into sought after collectibles. Even common subjects are pursued by ardent collectors trying to get as many patterns as possible of their favorite players. There's 20 packs per box and we'll let you do the rest of the math on this one.