We should keep in mind that Soyuz is the name of both a manned space capsule (like dragon / cst100), but also a rocket family (like falcon). You link seems to

We should keep in mind that Soyuz is the name of both a manned space capsule (like dragon / cst100), but also a rocket family (like falcon). You link seems to be specifically about Soyuz MS, a capsule. No idea how much SpaceX spends on refurbishing dragon.