There are 3 parking garages already on property already.:shrug: So let me add a bit to the watertable and pylons argument many default to. Look no further than the CR. The contemporary is a massive heavy structure that has been in place for over 40 years. Not to mention the heavy supports for the monorail. I realize it has a massive foundation to match but it is not sinking and it is located in the heart of the 'swampland' WDW was built out of. If the land can support the weight of the Contemporary, than a parking garage is not a big deal in the right spot. I do realize there are unstable areas on property that can't support such structures.
As for the watertable, again look at the Contemporary. The access road goes under the water bridge. It does not get much wetter than that. Again this has been there since the beginning with no major issues I know of. So proper engineering can work around these 'problems' rather easily. As for the extra cost, I have that covered. Well not literally. :lol: