So I’m not sure what the marginal cost per launch is. I remember reading that the propellant between Starship and Supeheavy is something like $100M per launch, which would put 20 launches at around $2B and would make the re-usability not actually a cost saver vs. an expendable rocket. However, I just read the article below that says the launch cost is more like $3-$5M, so I may have been completely off base in my original assumption.

https://spaceorbitals.com/articles/starship-v3-cost-per-kg-2026/