I would totally agree with this... I tend to get bored of running back and forth finishing various quests along the way and killing hordes of people or beasts. I started playing World of Warcraft 7 months ago, and after 50+ hours it is getting very old. We need more of the timeless games like Starcraft and Diablo. I was pumped about Spores, but I am not sure if it is going to ever be released.
A game like that could be a welcome "breath of fresh air". Even simple things like Sudoku offers a nice break from time to time.
One more thing... I do not mind if they make the games look awesome for those that can afford $600 video cards, but please allow them scale down so that my kids can play them on their PC. I guarantee that if World of Warcraft or even the Sims 2 needed a $200+ video card to be playable, then neither one would be in the all-time top 10 list.