variety of guided weapons like jdam or hellfire are generally much cheaper (easily 10x or more) and more available than air defense interceptors, not even mentioning lead times for them (usaf has effectively unlimited jdams). what is happening now is bigger version of desert storm scud hunt. does it work? if you accept proxy measures, according to some randos on twitter that tally them, then missile-related air raid alerts in israel dropped significantly in first four days