Sources:
https://www.19fortyfive.com/2025/03/the-f-47-fighter-cost-problem-no-one-wants-to-touch/
https://defencesecurityasia.com/en/iran-shahed-drones-gulf-patriot-air-defence-cost-crisis/ (assuming 2 missiles to each drone and the lowest estimate of drone costs)
Well, unless your opponent can afford to outspend you by several orders of magnitude and still win the war.
True, but even for a country like the USA, that becomes pretty hard to justify to your voters unless you’re in a war of national survival.