Well, there was some hype around the Santa Rosa X3100 integrated graphics, which was supposed to be much better than the GMA 950. Problem is, even if it's twice as fast, if you're going from 5fps to 10fps you still don't have anything playable.
To be fair though, I think there are some games that went from an unplayable 20fps to a barely playable 30fps.
I think Your right but these are all new games and if you want to play older games like age of empires 3,sims 2 stuff like that the macbook will play them great.
I use my macbook for:
Adobe
iTunes
Homework
Internet
iLife
It runs all that extremly well no problems I also think the macbook can do more then it gets credit for.