Disappointed this article didn't talk about maintenance.

I get the feeling most people don't take care of their cars (oil changes, tire rotations, etc) as often as they should -- I certainly don't. And with driving, it's no big deal. If your car overheats, just pull off to the shoulder.

With flying, it's another story entirely. Even a successful emergency landing would be terrifying for occupants. That means having experts go over every inch of your flying car regularly, and that means a lot of money.