Maine will use helicopters or hills, but not drones.
Farmers are beginning to use drones for much of the same reason everyone else does, or wants to, cost and speed.
$10,000 or $15,000 purchases a nice industrial drone system capable of scanning for analysis hundreds of acres per hour, on demand and under the direct control of the farmer.
That’s probably less than 5% for what a airplane or helicopter would cost.
I want to add that the prohibition of the use of drones is similar to cigarette taxes, at some point, ‘smuggling’ the use of drones will become a business.