DJI in particular has stayed ahead of the market by forcing their customer base to do their beta testing. The Inspire, Mavic and Spark all had major issues at launch, but since they were the only game in town offering those features, people bought them anyway. Countless hours of free testing and data collection for DJI. They're doing it again with the FPV setup, but like the quads they build, I expect they WILL get a lot better with revision, and will continue to grow and occupy a section of the market.
The US is ripe for a revision of our air traffic control. It's understaffed, overstretched, and not utilizing the amount of sensing and processing ability that we have cheaply available. I see drones being a big part of the redesign, and as a staple for real-time sensing networks in the future. I see a system that works like an extension of GPS, and helps craft in the area avoid each other automatically. This would open the country up for more use of drones in industrial application, or for infrastructure management. Infrastructure in the US is falling down around our ears. Countless dams and bridges need to be inspected coast to coast. This list goes on.