A F-35 fighter-bomber-surveillance jet costs around $200 million to build. With that same $200 million...though...a million drones can be built each capable of doing exactly what the F-35 does. Yes...the drone's pilot is seated in a bunker a thousand miles away...but...the firepower and tenacity are all present through remote control and directive.
So why not use drones and avoid losing pilots and precious F-35 jets? The answer is horrific. Pentagon officials said they can't hardly agree* to down-sizing even though the firepower would be better and less blood lost.
*What would all those military contractors do? What would all those jobless employees do? The loss would be too great to change to a 21st century approach to war. Hence...the F-35 jet proposal will go forward with its $400 billion price tag.