I think motivations evolve over time, and this can drive surprising outcomes. I figure that most of the folks who fought in WW2 were happy to see the back of the aircraft that terrified them in a number of ways. It was folk that had never been strafed or surprised by shrapnel at 20,000 feet that brought the historics back to life, out of the wonder of it all. Could you imagine that your kids would one day pull scrap metal out of the ground and make it fly ! I think in 25 years time, when pilotless drones are ubiquitous, the idea that an actual human being sat in a cockpit will draw a new generation to the wonder of bringing such contraptions back to life. They will also have access to short run tools like 3D printing for once off parts and trick around ancient circuitry with computing devices that will be thousands of times as sophisticated as the oxidising things that are needing replacement. The biggest issue will be paying the Pollution Toll for pumping CO2 into the atmosphere, and getting past the demonstrators with the signs showing penguins choking under a dump and burn. They will all gasp when a re-enactor will light up a thing called a cigarette, then step into the cockpit and light up the afterburner.