I couldn't disagree more. Good lasting games come out all the time and if anything, more games now days have been delivering for me. Games that have been trashed in major reviews like the recent Alien vs. Predator & Alpha Protocol have been thoroughly enjoyable for me. Grand Theft Auto IV, Red Dead Redemption, Mass Effect 1 & 2, I've been playing the heck out of these games and I'm not tired of them yet. Red Dead especially. I have put over half a month of game time (as in actual time played, I've been playing it since it came out in May) into it and I still love it.
I've actually have a hard time playing some of my old favorites for nostalgia as I really feel games have evolved so much recently. Gaming has been fantastic for me recently. So fantastic that for the first time in a long, long time I haven't been able to keep up with all the games being released.