News Shorter games are the future?

As a now casual gamer (2-3 times a week an hour or two after work) the length of CoD4 was just right for me.
And yes, I do lose interest in too long games.

"...barrier of reentry, in which I don't remember what the hell I was doing a month ago,"
that hits the nail on the head for me. especially in Vampires tmB or Final Fantasy 7 (or 8?)
Keep forgetting what I was supposed to do where (and how)

I've had to finish a number of games lately in order to make room for new ones, so I've managed to end C&C3, SupCom, Vampires tmB, and CoD4.
I cannot (or won't) finish Oblivion (never got past the first portal) and GTA3 however. (stuck in a single mission, just can't beat it)
Maybe I need a "God-Mode" for this mission.

Xir