Starfall is explicitly designed for mass production (like Starlink satellites), so unit costs drop sharply with volume. It is tiny compared to a Starship upper stage (~2.1 t dry mass vs. ~85–100 t), with far simpler systems (no main propulsion,

"The section of the river which was cleared is really coming back beautifully, wildlife is returning, yet we are being threatened with prosecution." The post Volunteer Under Investigation for Cleaning Polluted River Without a License, Faces Two Years