I still think that General Aviation, due to the waning interest in it, is going to revert back to the way it was in the early days.

There will be the wealthy with fancy airplanes, replacing Art Deco and polished metal for composites and whiz bang electronics.

There will be guys building planes in their garages, spreading the cost over time, and making antennas...or nursing very old Certified planes.

I think the middle ground of the average Joe buying a C172 to fly on the weekends, as in the 1970's, is over.

Unless....dormant airplanes start coming out of hangars and into the market in numbers enough to lower the prices, and there's a decent marking effort by AOPA and EAA to attract new pilots, highlighting the new affordability. My Magic 8 ball says "outcome not likely."