Posted By:
peter chaoDennis,
It's true that people were collecting rookies prior to the '84 Mattingly, but if you recall this was the first time people started speculating on a rookie. Remember, the Don Mattingly was hot from the very beginning. People thought he was joining the Yankee pantheon of stars and HOFamers from the onset of his career.
'84 Donruss was also the first high tech baseball set, they preceded Upper Deck by 5 years.
Also, '84 Donruss was the first set produced by either Fleer or Donruss that truly competed with Topps.
Peter C.