And I'm one of the few who's been excited about it since it was announced, lol. My opinions are skewed by being such a big Toy Story fan, obviously, and I've been keeping out of the discussions because these characters and their world mean a lot to me. Although I was happy with the Toy Story Toons and television specials we were getting, and would have been okay with just continuing to see more of those, I'll gladly take the chance to see another 90-minute feature with the toys. Of course, I can't help but worry about the reception it'll receive - but the fact that they waited until they had a treatment they were confident with before committing to another sequel, coupled with the secrecy the film still has surrounding it, leads me to believe they knew all too well going into it what would be said about a fourth installment, and they're doing everything they can to ensure it lives up to the other three. Toy Story is their first (and I'd venture to say, best known) franchise, and I highly doubt they'd risk anything to jeopardize its reputation.
Maybe he hasn't done anything original since Cars because he's so busy? Yet when he has a chance to work with his favorite characters again, he just can't resist.