Which would not have happened?
And are you talking about the early Eisner or the later Eisner?
Both. The "early" Eisner made just one big expensive "mistake" (DLP), which he later "fixed", but made more conservative spending decisions afterwards, which some can argue sacrificed quality (DCA, for example). But, DHS, for example, squeezed a lot for each dollar spent on it and got better than expected results, which lead to its expansion (which also squeezed a lot out of each dollar spent). Even the later Eisner, while exiting, authorized projects such as Expedition Everest, a grandiose E-ticket at a fraction of the current projects. Animal Kingdom, authorized by the "later" Eisner, with it's grandiose elements, stretched the dollar far more than the current projects and continues to make greater than expected revenue for the company.
On the downside, the later Eisner went too conservative with DCA and pushed too far that quality was sacrificed. Disney's current management team is spending $1.2 billion to "fix" this. Unfortunately, this spending will only hurt the company's bottom-line in the near-term and only does "damage control" by retaining and gradually increasing guest attendees over the long term. The Fantasyland expansion is a similar "fix" by correcting capacity problems introduced when the park first opened in 1971... An expensive fix to something that should have been fixed a long time ago.
DAK needs another E-ticket, but $500 million could have bought five of them. We still don't know how many (or IF there will even be any) E-ticket attractions in Avatarland. On top of that, Avatarland will be promoting ANOTHER STUDIO's movie franchise, so the whole formular of cross-promotion synergy between company divisions falls apart on its face! Avatarland will not generate revenue for Disney's film division, but will generate revenue for one of the film division's competitor's (Fox). So, not only are they spending multiples more, but they also will make much less on it.