I don't really care what Bush does, but a smarter president would at least give off the appearance that he cares.
So, you want to see him look reactionary. Fortunately, when you plan for the initial emergency, it gives you time to plan out the follow-on response. He will be down there tomorrow, and he has a joint session of Congress coming up next week (rumored) to address the nation about the need for a national response to aid the refugees as well as to manage a temporary short-fall in gas supplies in the US.
I think he has given off a great appearance of caring just by all the pre-storm actions taken. A President that didn't care would have waited till after the storm hit to act.