They're not worth it to actually use unless you have unlimited amounts of money or you know there's a nuke on the missile. It would take in the ballpark of $10

They're not worth it to actually use unless you have unlimited amounts of money or you know there's a nuke on the missile. It would take in the ballpark of $10 billion worth of anti-missile systems to shoot down $100 million worth of unarmed ballistic missiles if both sides know what their doing.