Nothing says you can't have a few dozen/hundred drones with SAMs, either.
$300k - $400k
> How much it weighs?
152 kg
> How much reinforcement the wing structure of a drone would require to carry, launch and land with this weaponry?
According to General Atomics;
"With a 1,500 lb (680 kg) payload, its wings are 'more than sufficient' to mount larger air-to-air or air-to-surface missiles."