When I see numbers like that ($38 billion) thrown around I always wonder: Where did that money go? In the best case, it stayed in the economy in the form of salaries and such. In the worst case, it goes directly into an offshore pile of mega-wealth where it won't benefit the economy and likely won't even be taxed. Is there any way to determine where on this continuum this program stands? I'm guessing the 1960s space program, while incredibly expensive, was firmly on the "money stays in the economy" side.