Every trailer you make such as The Last Of Us, gets more beautiful with graphics, environment, characters and story. When I watched the videos of The Last Of Us, I had to stop and figure out was it reality or just a game design. That's how realistic your art has become.
Since the Playstation can only take a certain amount with game quality, I feel as if NaughtyDog are 'prevented' from extending how far they could really go. I just hope that, if there is a PS4 that can take very high quality, that you guys will be more 'free' in terms on how far you can push your company.