Comment Basic Research for Industrial Exploitation (Score 1) 360
One of the big redesign expenses (besides idiot micro-management from congress) was resolving stability issues in the station's structure. It's very large size and near-earth orbit tended to result in the structure "bucking". The practical prototyping of space structures--such as inflatables, tension systems, and structural components manufactured "on site", could greatly reduce the cost of future missions and provide a much higher confidence level during the design phase of projects.
If we really want to move into space then these are the sorts of activities we need to persue. Once your structures get much larger than the Space Station the current methods of design and construction are inadequate, too costly, and too risky--arguably that is already true.