I'm pretty sure I read somewhere that Mormons are supposed to stockpile enough food for a year or something.

And he probably overestimated how much space is required for instant "cheesy grits".

Honey we gots water in the basement again!!!!!

That's about the only way you could do it for semi-cheap.

He's that rich.

Is up on the cliff with the beach far below.

...so the poor people can't tunnel into to steal his gold, artwork and Cadillac's when the world turns to shit after his second term.

Subterranean Homesick Blues

snip

TRUST Mitt Romney to be on top of the latest trend of the superrich: the trophy basement.

On Friday, The Wall Street Journal reported on the new fashion to look low-key on the outside while digging deep for opulence — carving out subterranean spaces for Turkish baths, Italianate spas, movie theaters, skateboarding ramps, squash courts, discos and golf-simulation centers.

The Journal reported that Romney has filed an application to replace his single-story 3,000-square-foot beach house in La Jolla, Calif., with a 7,400-square-foot home featuring an additional 3,600 square feet of finished underground space.

It’s a metaphor alert, reinforcing the two image problems Romney has: that he’s an out-of-touch plutocrat and that his true nature is buried where we can’t see it.

His two-year missionary stint in France taught Mitt to steel himself against rejection. Still, he must feel awful heading into Illinois (where Joseph Smith, the Mormon Church founder, was running for president when he was killed by a mob), spending so much money to buy so little affection.

There’s a certain pathos to Romney. His manner is so inauthentic, you can’t find him anywhere. Is he the guy he was on Wednesday or the guy he was on Thursday?
snip

http://www.nytimes.com/2012/03/18/opinion/sunday/dowd-is-elvis-a-mormon.html?ref=opinion

Mitt likes to have enough room to do the backstroke in his pool of gold coins, hence the underground vault.