Gangbangin punks moved up to handguns in the '60's when autos were prohibited from interstate commerce. They know real power - and silly automatic knives don't stop another punk cause he carries a firearm, too. It is the unintended consequence of a New York Democrat trying to legislate morality after seeing one too many Hollywood biker flicks in the '50's. Nobody in Justice or DOD tried to stop him - they were exempt.
Stolen handguns are cheaper and more effective. Pricing what the market will bear only points out that auto owners like me will part with the cash for a unique feature that is relatively useless in a waved, holed, studded, and AO world. Frankly, the existing patchwork of state and local restrictions actually help sales by supporting the desire to get one. The major makers probably don't want a change - it could cut into their "protection."
I've got an Paragon, Benchmade, Camillus issue, Chinese "Lightfoot," and a German "Nato" OTF that really did disintegrate in my pocket - and they're fun toys, but not worth the functional difference. If Mick Strider offered me a free auto SnG, I'd be hard pressed to politely accept it without asking "What's It For?"
Buuuut I'd take it.