The missiles cost more hence the constant aid package to Israel always including the patriot missiles.

But you never know

This shit was planned, the splashy numbers look real shiny on paper. But as far as potential missile defenses went. It was a case of, and they probably weren't going to shove Thaad near the border, being so close to installations faster weaponizing where Russia has deployed the nukes, and nuclear bombers, and subs etc, since.