This is correct. In addition to the plummeting cost of sensors, communities such as DIY Drones and OpenPilot have made enormous contributions to the accessibility of this technology, by developing open-source autopilots that rival the capabilities of very expensive proprietary products.
the day isn't that far off where robots get set off to do work either hazardous, monotonous, or even just require constant precision, with regards to vehicle operation. As I posted before and I got the book idea from another here, Red Mars has a great amount of imaginative use of robotic vehicles and manufacturing.
Just like with this drone, besides eliminating some safety concerns we eventually will eliminate the other costly part, not having enough time to do all we want. With enough drones there won't be much we cannot do for time, just money will come up to the forefront.
