The shuttle was not even reusable by any modern metric, the main tank was always expended, the boosters had to be recovered, fully disassembled and cleaned.
I'm not even sure the SRM case segments could be easily reused, given the tremendous stress. They were made of a very high strength steel (maraging steel, with a yield stress of something like 250,000 psi) operated with a safety factor of 1.4.
