I love my classics, and yes I find myself playing more MAME and retro stuff. I turn on my 360 and pretty much just play the simple XBLA titles. I've beaten hardly any of these newer games in years.
I think games now try so hard to be like movies and spectacles that they forget the basic core elements of what makes a video game good. If there isn't a core challenge that gets harder and harder as the game progresses, some kind of points to rack up and constantly challenge me to reach higher, or at least some competitive gameplay, it just doesn't interest me.
Now, you have too many games that have amazing cinematic-like graphics, stories, and sound, but no sense of a core, compelling gameplay. Just going from point A to point B, doing the same thing over and over with no increasing challenge, or motivation, and the game is over. Capcom had a few games that at least kept me interested for a few minutes with Lost Planet and Dead Rising, NBA2K*, and the PGR series was also something I enjoyed, but I can't think of anything else that just had good old school gameplay I enjoyed.
The only thing I like about today's video games for the most part are the online play. At least online gaming stays true to what I love about video games: Challenge, points, and competition. I played the Call of Duty, and Halo series to death online, constantly pushing myself to get the most points every round, increase my level, earn more weapons. On the other hand I never touched the single player.
I'm only 20, but I guess I'm just old fashioned. I can picture when my game room is done, everyone will go rushing to play Call of Duty or whatever generic Xbox game is out, but I'll be at my MAME cab rackin up a new high score in R-Type, Mappy, Ms. Pac-Man, Raiden, and Metal Slug.
2pac said it best, "ain't nothin like the old school."