I think this may be slightly true if you only look at your character models taken out of context, I think the fact that you can have games like Tomb Raider:DE running at 1080p/~60fps on the PS4 along with enhanced textures and particle effects is a pretty big deal, it does not shine that much on screenshots (but it does) but once you have seen it in action there is no going back, same for Battlefield 4 (which is not even 1080p) ... obvisouly the true next gen titles like Killzone and Knack look even better and they can't be mistaken for great looking PS360 games, as well as running better than their contemporaries.
So yes, what you see on the screen may look somewhat close to what you had before, but it also runs much better when you see it in action, even the 30fps games have much less drops than they had on the previous generation of console.
We gained temporal resolution, which makes all games much better in motion than trowing in a million polygons.
