For a single engagement your logic is sound. But for a prolonged war logistics is extremely challenging. Wars have been won and lost based on who is better at b

For a single engagement your logic is sound. But for a prolonged war logistics is extremely challenging. Wars have been won and lost based on who is better at bringing fuel, supplies and ammunition to the battlefield. If you can reduce volume and weight of missile shipments with these things that might be incredibly valuable, even if it's more expensive overall