That's the most idiotic piece of tripe ever. The Space Shuttle would never have been viable as a commercial vehicle. Let me put things into perspective for you. After each shuttle mission they have to recover and refurbish the SRBs, and manually inspect the orbiter's tiles (a task which hadn't been envisioned before the first shuttle mission which drastically increased the shuttle's operating costs). In addition, unless they can get two shuttles ready at the same time they have to use the lithium aluminum alloy fuel tank which is exceptionally expensive, but necessary for ISS rendezvous.