Sony could possibly stop you from playing used games

[MoHasanie]

Well I'll be shocked if Sony doesn't block any used games on the PS4 because third party publishers will begin to favor Xbox One and give it exclusive content. As a customers I'm very happy Sony won't block used games but I don't want to own inferior versions of the game whilst Xbox One customers are playing the superior version and paying the same price.
More importantly, third party publishers will still block used games on the PS4 if they are given a choice. Why wouldn't they? They can earn more money by doing that.