This is what the Spirit was alluding to a few threads ago, where he opined that WDW'd need more than a billion to get things up to speed.
Here's what it comes down to, Jim Hill pointed out all the spending that's been going on, infrastructure wise, and I'm sure he's right about a lot of that. But spending on roads, and DVC, etc. is not the same (to us, anyway) as attractions and theming in the parks. Two separate animals. And, if they want to sell DVC, they need things to make people want to come back. Arguably--and I think this would be TDO's point--they have that already. We 1-percenters (and by that I mean the actually MUCH LESS than 1 percent of park visitors that are Disney fans) see these things more acutely--and an average DVC purchaser is probably happy coming once a year for a few days, for years, without griping about the minutae that we all go on about, here.
But, still--attractions. Attractions. Another Disney Decade, where it seemed like new wonders (and, admittedly, some not-so-wonders) sprung up like weeds. As much as DHS needs a 2.0 version, Epcot,
FutureWorld especially, needs the same.
Can the economy support it, these days, though? Who knows.
Ramble mode, off . . . well, sorta.