The Google boys love their planes so I guess this makes sense. They currently have a hangar at Moffett Field and there was talk of redeveloping the old "Hangar One" but this probably means those plans have died on the vine.
According to a San Jose Mercury News story, Google's top three executives have at least eight jets, including a twin-aisle Boeing 767 passenger jet that is commonly used by airlines for transcontinental flights.
via San Jose airport lobbies for $82-million hangar for Google jets - latimes.com.