I agree. The problem is they seem reluctant to try and do this. Take a break from the Mario's and the Zelda's for a while and try something new.
I personally prefer the look of realistic style games. As someone who has never like cartoons, even as a child, I really cant get into playing cartoony style games, I simply find the look far to distracting. At the same time I dont want a game that is brutally hard, I hate playing the same level 50 times because I just cant beat a certain part. I would like a challenging game but not over the line. It doesnt have to be violent, or gory, just give it a bigger sense of realism and I will be plenty happy. I really thing ED and Prime were great in this regard and are definately steps in the right direction.