There are only two chains of brick and mortar store in the world and one with double digit market share (Apple) has decided to take 30% off the top for all goods sold in all of their stores and have banned products from having any indication on their packaging that they can be purchased elsewhere for different pricing. Entering any store also requires an extremely expensive chain-specific device that most people purchase on credit every few years, eliminating the ability to easily shop around at both chains.

If this were to happen outside of tech, the perpetrator would get crushed by anti-monopoly legislation.