Tomahawk missile cost has increased 10x in 40 years
"The U.S. averages sixteen years to deliver a major weapons system. The People's Republic of China (PRC) delivers systems in approximately seven years. That's nine years of the PRC being in the game before the U.S. even takes the field."
General Duke Z. Richardson
Commander of Air Force Materiel Command
SpaceX showed how vertical integration decreases cost and schedule
Every dollar sent out of the company actually costs $4
Incumbents only assemble subsystems like rocket motors