1.Your local hobby shop drone will not be able to fly for 20 hours like a fixed wing Scan Eagle. Bad comparison. 2. Modifying drones to be used for combat is cheap if you don't count the labor cost, and in relative peace time counting the labor costs and overall cost of fielding a system is fair. If you take a $5,000 consumer drone and want it to *reliably* explode on someone, at small volumes that will likely take enough labor time to verify, let alone certify, that it pushes the price up to closer to the price of the new dedicated loitering munitions...