The cheap car isn't the same cheap car though. Try finding a 2-door sedan with manual controls and an AM/FM radio. Even the cheapest new car has bluetooth entertainment controls and backup cameras. It also has airbags in every zone and a decent crash rating.
Nobody produces the cheap base-model car of yore, if they did they could easily do so for well under 10k. But that doesn't support the bottom line especially when you have to cut in the dealership.