I have been thinking about this for a while, mostly the past two gens, and I don't believe it would have been feasible until next gen. Here is my thoughts on the matter:
There are some companies that release games in very limited quantities, I have gotten a few used games only because they are no longer in production after a week or two of being released. Had used games been block this would cause a serious issue along with even bigger price spikes for rare games, leaving a vast majority of people to never play the games.
However, with the next-gen having all games on digital makes that a smaller issue. There are still people that prefer their games in physical format, so they will pay the price set when a low supply game is made, but it will still be available for purchase from the digital store.
With all that, I would vote for used game blocking next-gen. I don't think it will happen, but if it does I'll be ok with it.







