Honestly, the only thing this - and partly last - generation has brought were sequels of sequels, and them some sequels.
Hardly there was a new, innovative game, yet alone a whole game concept, just the same thing only with a bit better graphics, a few more levels and enemies, and depending on genre, a few more little gimmicks.
But essentially, it has stayed the same, and that kinda makes me sad.
I think that while it is true that a lot of older games have not aged well, many of them still stand up to what the gaming industry produced nowadays, and in fact, a lot of them are still better than new games.
Sure, genres that are going for realism always will be better now (FPS, simulators, some racing games, etc.), but there's genres where good graphics won't help a lot, like platformers or RPGs, where it winds down to other aspects other than graphics. And this is where older games shined.
Why is, for instance, Chrono Trigger considered being one of the greatest RPGs ever? Because of an amazing story, and an amazing gameplay. I think it had one of the most innovative and interesting ways of round-based combat I've seen so far in the whole genre, and the story was really creative and well-thought out.
RPGs nowadays have little to offer other than staples, though. That's why I grew so detached to them. One of the few newer RPGs I liked was Eternal Sonata, because of its cool battle system. The story started out really good too, but it became kinda bland and towards the end it spiraled out of control, like with most JRPGs.
It's just that the replay value in older games is waaaaaay higher than in newer games. There's still a ton of people who play classics like Tetris, Super Metroid, Street Fighter 2, Bomberman or Super Mario Bros. 3, not to mention the whole spectrum of clones of these games that spawned in their age and still are done now.
Newer games are mostly "play through it once, done". Hell, the replay value even had to be artificially pushed up through achievements/trophies. But that doesn't hide that most games are just like "yea play through once, then you're done", except they're aimed towards multiplayer.
First and foremost graphics are important to developers now, and everything is not as important.
That said, I love both old and new, and I love good graphics, but to me, old games usually take the cake because it seems that since the developers didn't have to worry about making good graphics, they had more time to invest in other aspects of the game, make it innovative and have a good gameplay or strong story.