Yes, I get that, but for whatever amount of money is found, you're better off using it more effectively. The cost of things still matters, if you want to win wars against serious adversaries.

One problem the US has had in its Iran adventure is that they're shooting down $30K drones with million dollar missiles, often several of them. Now the missile stockpiles have been depleted by 30% to 50%, depending on missile type, and they're not all that quick to replace.