Need to hit? They don't need to recover any as far as I know to be profitable. They give discounts on "launch tested" boosters. They hope to recover as many as they can. Some launch profiles (higher orbits, heavier payloads) don't allow for recovery as there has to be some propellant left in the booster to land. I think one of his problems now is storing all the used boosters. With his satellite internet project, he may end up being his own biggest customer.