How much is it going to cost to run a truck and crew out to that cell tower to find out that the squirrels have loaded the microwave dish with acorns again? A drone spying on squirrel squatters is a lot cheaper. A drone operator launches a small drone, flys up the tower, spots the rip in the fabric of the microwave dish and can have photos and videos back to you in seconds!
Why climb a tower for inspection or survey when you can safely fly a drone with so little effort and risk to workers; so much physical labor! That’s expensive. Fly the drone before you swing the crew.