Apple has been doing this since before they were an enormous company. When the iPod Nano was in the works, they bought like 3 years supply outright, to block th

Apple has been doing this since before they were an enormous company. When the iPod Nano was in the works, they bought like 3 years supply outright, to block their competitors. Pre-iPhone and during the mechanical-disk iPod era, they were a very small and vulnerable entity.