Man, the shuttle's cargo bay was rediculously huge. Lofting that whole volume for a routine iss resupply seems insanely wasteful. (I know that it is expensive

Man, the shuttle's cargo bay was rediculously huge. Lofting that whole volume for a routine iss resupply seems insanely wasteful. (I know that it is expensive to loft mass, not volume. But in this case it is volume that needed to be enclosed in a shell that could survive reentry.)