Disney experienced a very bad attendance period in the early, mid 1990's and cut all of their park hours. They never did go back (MK us to be open until Midnight every night in summer and EPCOT, both Future World and World Showcase, was open til 10 every night in summer....miss those days a lot still). Now I know the EMH kind of offsets this, but hours were cut a while back and never really did come back the same way. In regards to a park closing once a week? Gas prices are up and the economy is doing poorly. But there are still a lot of people who make lots of money that go on vacations and spend money. It would take a huge nationwide disaster to make Disney alter their operating procedures. Gas prices aren't going to change make them close a park. And as somebody already mentioned, 9/11 really hit attendance hard and they never practiced this. If anything, they would lower prices and offer deals to create interest and entice people to visit.
Disney didn't cut back after the terrorist attacks of 9/11/2001 because that was a temporary lull in attendance that had nowhere to go but up.
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