Little Miss Liberty said:
Just wondering who would prefer to fly directly in to the Walt Disney World Resort. I'm pretty sure that Disney has enough land. How great would it be to have the magic start as soon as you land? Imagine getting off the airplane and being greated by Mickey

and listening to "If you wish apon a star" while checking in? or do you think it would be a logistical nightmare for Disney? It's fun to imagine!
No, Disney doesn't have nearly enough land to build an airport.
Look at this Google map:
http://maps.google.com/?ie=UTF8&ll=28.386568,-81.455383&spn=0.388424,0.582275&om=1
In it you'll see MCO, on the right side. MCO property is highlighted in gray.
Compare that to WDW property, on the left side of the map, which is in a slightly darker beige than the surrounding areas.
MCO is nearly half the size of WDW. And WDW is about 20%-30% developed already, leaving no room for a major airport.
Now, a smaller landing strip would be possible, but that would be useless. WDW needs to be serviced by a major international airport - which was one of the major reasons why Walt and Roy picked their Orlando site as they did. It was a quick 30-minute drive from McCoy field, an upand coming airport in those days that eventually transformed into Orlando International Airport (the MCO comes from McCoy field).
It's fine the way it is. Trying to limit yourself entirely to WDW when you go to Orlando is dumb; you miss out on an entire city full of other theme parks, hotels, resorts, golf courses, restaurants, water parks, shopping, dinner shows, and other entertainment.