From what I can find a single rocket has an export cost of about $230 000. It's still reasonable to kill individual vehicles, especially if you can kill combatants as well. So much of the equipment also has huge military inflation attached as well, there could be a push to reduce the profiteering of the American defence industry due to so much more need for supplies. The"War on Terror" cost ~$3tn , but it was an elective war and has really run down the resources to keep paying at those levels. Now that the world is cooking up a real hot/cold war our nations will need the kit, and if we can't afford the shareholders bill anymore, solutions will need to be found. Hopefully.

Edit: corrected the autocorrect.