After test-driving several cars equipped with backup cameras, I became hooked on the idea, enough that I have decided to shell out $1000 to have one put in my new car.

I wish I'd had a tail camera when I gently taxied my PA-12 wingtip into a parked aircraft (never mind that the other A/C was jutting into the runway). The real cause was that from my vantage point (being tall) I could not see the wingtips! I know, this sounds absurd, but after analyzing the geometry, yes, about the last four feet of wing on each side are not visible to a tall pilot.

Costs have come down so very much in recent years,; it seems silly to deprive ourselves of alternative views that could benefit safety.