Linear tracking turntables, whatever happened?

Sat down to read Stereophile and one of the first articles was of a new tangential tracking pivoted arm.
Made by Klaudio and coming in at either 9k or 12k it looks like a major mechanical Marvel.

Some other brands of current production tangential arms noted were;
Bergmann , Clearaudio, Kuzma , Reed, Schroeder, Thales, etc.
Still very much alive today.

https://klaudio.com/tangential-tonearm-12-inch-equivalent-kd-arm-ag12

... looks like a major mechanical Marvel.
A gold plated Marvel. Costs a fortune.

LOL

I´d rather buy two fully serviced vintage Citroën XM. Other for my better half.
Humour you got : ) Well, I knew it. Carry on.

As little more than a long haired child back in the day a neighbor had many Citroen, including an XM that he bought new, circa 1972? His son, my age, used to borrow it and we'd drive it for the regular boring routine that teenagers had back then --the carpets were deeply padded, it had a purple cast to the windows and of course that hydraulic suspension. (I can't remember if the headlights pivoted, i thought those got outlawed at some point in the States). It had a nice engine burble, but subdued. I'd hate to have to restore one of those today. Maybe a Pallas D Decapotable by Chapron? 

whart

I can't remember if the headlights pivoted, i thought those got outlawed at some point in the States)

Pivoting headlights are allowed in the US. It's a great feature.