You can argue that people wouldn't come anyway if they can't afford to. Well, attendance to theme parks has dropped, but there are still quite a lot of people going. So among those who can still afford to go, maybe they will only visit once in the next few years, because of a dearth of new rides. And some people who are on the fence about going may decide that it's not worth it -- again, because they've done all the rides umpteen times, and there was nothing new, so they decide not to go. Discretionary spending companies like Disney will feel the impact of a recession, no question about it; but decisions like the ST II delay will only make things worse.
It's funny, the movie business keeps making lots of movies no matter how the economy goes, and spending huge sums to make them. They know they can't rest on their laurels and just keep selling DVDs of their previous releases. But Disney's theme park division gets a pass from you guys, because they don't want to spend the price of one new $100 million + blockbuster to create an attraction that would draw crowds for decades at one of their parks?