I'm only an SLF but how much would an inert gas suppression system cost? i'd be guessing way less then even the "cost" of 1 crew, never mind a $250M jet.
just about any decent computer room has one, and most of them would be worth way less than a 744 and the freight.
aircraft are big pressure vessels, give the pilots 15 secs to get their masks on and then fill the plane with halon and dive to the nearest airport.