For example, if most families take a week vacation to Orlando and historically have stayed at WDW with 7 or 8 day park hoppers, and then suddenly decide to spend 2 days at Universal and only purchase 5 or 6 day park hoppers, then yes it does effect Disney. I think you're starting to see more and more of that.
That describes my family perfectly, and I know we arent alone. My wife and I havent been to Universal since the 90s, however we've been to WDW about 10-15 times since then, we'll be making the trek to Universal to see what it's all about.
Problem is you're making generalizations about your own habits--and those of personal acquaintances--without really having any knowledge of how many people follow those same patterns.
Disney loses and gains business all the time. I've been to Universal a couple times. Once was about 6 years ago and the other time about 4 years ago. So on those occasions you could argue that Disney "lost" a few days of
my business. More recently, they haven't.
Every day families outgrow the Disney parks. And every day there are other families discovering the Disney parks.
In many ways, improvements at Universal will actually help Disney. There are people who used the Harry Potter attractions as their reason for visiting central Florida...and proceeded to spend a few days at WDW while in town.
I'm not saying there isn't concern deep in the executive offices at WDW. Attendance at DAK and DHS has flatlined in recent years and the next wave of Harry Potter additions is on the horizon.
But Harry Potter is the proverbial genie who has been let out of the bottle. Even if Disney spends a billion dollars to build Star Wars Land and Pandora, there will STILL be people who want to visit WWoHP.
As has been the case over the last decade, Disney's park investments will be very calculated. The days of Eisner's knee-jerk spending are gone. I suspect the primary goal of the DAK expansion is to extend operating hours.
Consider something as basic as food sales. Right now, the only viable meal at DAK is lunch. The park closes at 5pm most days. The number of guests eating dinner at DAK is miniscule. Just getting dinner crowds into the park could double food & beverage revenues. Not to mention all of the other retail sales that accompany longer operating hours.
Avatar itself is a calculated move. Disney is gambling that more film sequels will reignite worldwide interest in the franchise. If so, then you will have people saying "hey, lets go to Walt Disney World to see that Pandora area." Best case scenario, the park will eventually host fan events and move a lot of Avatar merchandise.
A generic expansion like "Australia" or "Beastly Kingdom" would never have as great of an upside.
lockedoutlogic nailed it with this:
Ak and studios have higher numbers than even the great IOA because Disney has an insurmountable lead in reputation and worldwide appeal than uni can muster...it's not gonna be close. Even if we believe Disney is being poorly managed and degrading its product - which most of us agree.
Forget the die-hard, message-board-reading Disney fans. Most of their business comes from families making those ritualistic once-in-a-lifetime visits to that place where they can get the photos with Mickey Mouse.
I don't really foresee a day when Gru or Optimus Prime or Ron Weasley replace Mickey and Minnie in those photos placed on fireplace mantles throughout middle America.