I was comparing them to cars, not planes.<quoted text>
Helicopters fly under pretty much the same regs as airplanes.
And they actually have much less restrictive requirements concerning where they can land.
You don't see more helicopters because they are much more expensive and extremely maintenance intensive.
They're also harder to fly. Kind of like rubbing you tummy while patting your head.
It's also said that helicopters don't fly. They're just so ugly, the earth repels them.
But that joke was pretty good.