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Prince Alwaleed bin Talal of Saudi Arabia is purchasing a custom Airbus A380. The biggest passenger plane in the world — 6,000 sq. ft. — will cost more than $400 million once it is outfitted with all the accoutrements necessary to fly one of the richest men in the world. The prince already owns a custom Boeing 747, previously the biggest private plane in the world, and has a fortune worth around $20 billion. Don't count out Google cofounders Sergey Brin and Larry Page, though. The Google boys are worth around $20 billion each and also have an affinity for custom jets.

Google CEO Eric Schmidt, who has plenty of money of his own, recently sold a Gulfstream V and Valleywag reported that he was looking at a brand new Boeing 787 Dreamliner. Perhaps Larry, Sergey and Eric — the three Musketeers of Silicon Valley jet ownership — will pick up one of the A380s to add to their growing collection. Googlers always aim high, don't they?

And the A380? Custom designs could include a movie theatre, a gym, jacuzzi, multiple bedrooms, a very large dining area and more. What mogul doesn't need their own flying palace with more square feet than most houses?

(Photo by AP/Christof Stache)