I would guess that people in the past were laughed at for buying T206 cards for 15 or 20 cents a pop, back when some probably thought they were nothing more than overproduced junk. Some probably drew the line in the sand at 5 or 10 cents, while others had no interest at any price since they were so mass produced.
Jordan count 0, just sayin'. We'll know 1990 Fleer Basketball was something special when average grade commons start going for close to 100 bucks a piece.