Amazon's model is entirely reasonable until they become a 1st-party seller that competes with 3rd parties. Then it is all too natural for there to be some marke

Amazon's model is entirely reasonable until they become a 1st-party seller that competes with 3rd parties. Then it is all too natural for there to be some market abuse. For instance, configuring search ranking to always put the Amazon branded option in the top results is Amazon abusing their market position as a marketplace/distributor to now directly sell goods.