To me, it's a big reason why Americans love Disney World: you can drive to your local airport, fly to Florida, take a shuttle bus to your resort (that handles your luggage for you), and then rely on Disney's private network of bus routes, monorails, gondolas, boats, etc., instead of having to drive yourself.

In fact, if you use their transportation network, you actually get somewhat better treatment: in all of the parks, there's a shorter walk to/from the transit terminal than to your car, and in one of them (Magic Kingdom), you are required to park a distance from the park and take a connecting ferry.