Linear tracking turntables, whatever happened?


Curious as to the demise and downfall of the seemingly short lived linear tracking TT.
Just from a geometry point of view I would have thought a linear arm should be superior to one with a fixed pivot that sweeps through an arc.
Obviously there is much more to it than that, sort of the reason for this thread.
I am genuinely interested in trying one out for myself as well.
128x128uberwaltz
Pivoting tangential-tracker tonearm by Thales shows more promise that conventional linear tracking.
Just fired up my old sl10 after seeing this thread brought back .
With the Adzen p mount cart in it now, I was pleasantly impressed again .
It resides in my PC room system right now but might have to try it again in my main rig now it has a totally different phono and SUT from the last less than satisfying trial.
This is wierd, I just stumbled on this thread after just picking up a Pioneer PL1000 from a work friend who bought it when he was stationed in Germany in 1982. He shipped it home and never played it much if at all. Well, after giving him $50.00 for it, I got it home, opened the box and Wow this TT is brand new. The dust cover is absolutely pristeen. Pluged it in and every thing works perfectly. Now to research a little more n this TT.