"It's a rite-of-passage thing. Also an age thing. You're probably around 25, have jumped, slaughtered and strategised your way through at least 1000 games, and found them amazing and entertaining. Then something happens.Sound familiar to anyone? =P
You start to get bothered by the sameness. You start to notice that games recycle the same ideas on a generational timeline, that every 5-7 years or so game developers repackage the same concepts for new platforms. And also keep making the same mistakes. Over time, you start to think that games need to be saved.
Your attention span shortens. You struggle to remember the last time you had a gaming all-nighter and you look on Skyrim not as a challenge, but rather as a task. A drudge, even. You wonder just how long games can get away with that sort of thing. You also start to be much less tolerant of the first hour of a game: if it doesn't absorb you then you dump it."
I think the fact that many of the current MMO bloggers fit squarely into this description explains a lot about the tone many have towards the games today. For example the whole '3-monther' label being used by many as proof of the genre's failings rather than a hint that something has changed in the player. I also agree with Tadhg that perhaps we 'old timers' may be able to get games more in line with our desires by focusing on indies rather than the mainstream gaming industry, since the mainstream studios don't really seem to be serving our demographic.
Related Reading: The Dark Side of Happy Memories