@Siren, no offense but you have got to stop throwing out that "10 years" thing. It's ridiculous.
It wasn't all that long ago that Disney used to work on multiple attractions at multiple parks simultaneously. During the Happiest Celebration on Earth, an 18-month period from 2005-2006, Disney did the following:
- Magic Kingdom received a major refurbishment of "it's a small world", A major refurbishment of Pirates of the Caribbean, a new golden overlay for Cinderella Castle including a temporary stage show held at the castle called "Cinderellabration" featuring many Disney princesses and a new playground Pooh's Playful Spot.
- Epcot received Soarin' from Disney's California Adventure and A Hong Kong Disneyland Preview Center
- Disney-MGM Studios received a major refurbishment of the Streets of America area, and the Lights, Motors, Action! Extreme Stunt Show from Walt Disney Studios (Disneyland Resort Paris)
- Disney's Animal Kingdom temporarily exhibited Lucky the Dinosaur, the first free-roaming automatic Audio-Animatronic figure; in addition in 2006 the park opened Expedition Everest, a highly themed roller coaster through the Himalayas that features an encounter with the Yeti.
And that was just at Walt Disney World. Other attractions were opening at all the other properties.
Today, they take something like the Fantasyland expansion and spread it out over 4-5 years while not developing much of anything else. Disney does this for their own reasons which most likely have to do with spreading out costs over multiple years (which is ridiculous given record prices and attendance).
But it doesn't have to be this way. Disney could have easily built an entire Frozen land if it wanted to in a reasonable time frame. They don't because they don't want to. If you're okay with Disney choosing to do the cheapest and most expedient thing (and then taking much longer than necessary to do it), that's your prerogative. But don't invent some false choice like it was this or go without Frozen for a decade! That's beyond absurd.