NASA also thought the Space Shuttle was going to get cheaper per-launch after a couple years of service, and they turned out to be completely wrong. Why should we trust that this time will be different?
NASA's own Inspector General says, "... NASA’s aspirational goal to achieve a cost savings of 50 percent is highly unrealistic" and "... a single SLS will cost more than $2 billion through the first 10 SLS rockets ... " [0]
NASA's own Inspector General says, "... NASA’s aspirational goal to achieve a cost savings of 50 percent is highly unrealistic" and "... a single SLS will cost more than $2 billion through the first 10 SLS rockets ... " [0]
[0]: https://oig.nasa.gov/wp-content/uploads/2023/10/ig-24-001.pd...