I mean, SpaceX has already been contracted for the flights for the remaining years that the ISS will be around. They already don't have the ability to raise pri

I mean, SpaceX has already been contracted for the flights for the remaining years that the ISS will be around. They already don't have the ability to raise prices that much. NASA keeps Starliner around because they've already committed to the bit about redundancy when it comes to "new space" style acquisition processes (after all, they're still fully intending on flying astronauts on Orion without flight testing a fully crew capable version, and talking about paying for a backup option to it and SLS is a fast way to get fired or forced to resign).