You wouldn't want the olden days to be today anyway. I don't play many new games and Im only pretty casual when it comes to gaming, but I do know that too much of a good thing ruins an entire experience. Think about it, if 20 years later you were still playing games that only slightly improved on games from 20 years before, instead of whining for how games changed and weren't fun anymore, you'd be whining that games never change and because innovation is what helps drive technology in the first place, the gaming industry would maybe die off a lot quicker.
It's just like music and movies and everything else. Part of the experience of enjoying classic rock and roll and classic comedy and classic gaming comes from the fact that you can't get it like that anymore. Another part of the experience is that you grew up with it. It captured your imagination at a time when it was developing and it made a perfect groove in there to fit. Now you're grown up and the experience is nostalgic and made up mostly of memory of how good it WAS, rather than how good it IS, if that makes any sense.
I mostly use this argument for music, but I think it still applies to gaming and a lot of other things. Basically, if you're not going to appreciate new things because you pine for the old days, you're really cheating yourself out on a lot of new experiences and fun. That's just the way I see it.