Politeness in steel

My search for a quote from Heinlein led me, in the usual inscrutable way of the Internet, to the blade in the photo, made by these folks.
Now that is a sword. No doubt about it.
If more people carried them, then Heinlein's adage ("An armed society is a polite society") would doubtless be proven true.
And if I had a spare two thousand bucks, I'd be carrying one...