I debated going to Disney's Animal Kingdom yesterday, but I went to Universal instead.
I woke up at 10:00 AM and had to be to the airport by 5:30 PM (preferably with a shower). That didn't really leave me enough time to feel comfortable with dropping $200 on a Disney ticket.
So, I used my Universal annual pass and re-rode the same rides as the day before. I don't begrudge it though. I still had fun.