Interesting point from Ars...
SpaceX's accomplishment of 25 flights offers an opportunity to step back and take in some context. Although everyone focuses on reuse, SpaceX is still building new second stages for every launch. The task of building so many spaceships in a year is a tall order. While SpaceX's competency with reusing Falcon 9 boosters gets a lot of attention—landing a rocket is still incredible, even after seeing it nearly 400 times—the high-rate manufacturing of Falcon 9 upper stages is the secret MVP. It also suggests that the company's goal to build 100 Starships a year is not crazy.