I suppose we will need missile tenders.
Remember, most of those are defensive anti air or anti missile missiles. There could very well be a second, third or fourth wave of attackers. Especially from countries who may have a bit lower tech, but larger numbers of aircraft and missiles. It doesn't help you much if you get 95 hits out of 100 launches, if you have 100 missiles, and the enemy sends 200 attackers, even if they do it in well separated waves. If you don't have anything left to shoot at 'em, you're dead meat.