4K isnt even affordable and everyone knows outside of the gaming industry Sony backs DRM, so this might fly because the mass market who listen to music watch movies and that ilk have already grown accustomed to DRM and have not been vocal against it, hence why Sony is applying it there. The videogame industry is a totally different situation, gamers are vocal and unified when it comes to certain topics and they will boycott a company on the core end whom are the initial buyers.

Sony will most likely change the policy once the product goes mass market, but the rich will not care because they are the only ones who can afford it right now.

Who can even afford 4K? and what is the point? Most of our content is still not in HD or 3D yet. It's all a waste of time