What happened to Linear Tracking Turntables


After a lengthy discussion with a fellow audiophile who owns a B&O 4004 linear tracking turntable, he wondered what ever happened to the genre. According to him, they do less harm to the groove walls than do current arm geometries. He claims that records he has played hundreds of times sound basically the same as new with minimal wear. My response was--if they were so good, why do so few companies offer them? I'm sure there is a valid reason, but neither one of us is knowledgeable enough in the area to argue the point. Any analog gurus out there who could clarify the reason they fell out of favor.
jig
I believe Chadnliz is right, and a LT arm if improperly adjusted can harm a record more and faster than a pivoted arm. And they are hard to adjust correctly unless extremely well-made. So I have always considered LT arms as not to be fooled around with unless very very high end. UHF Magazine's Audiomeca SL5 is a good one.
The Yamaha PX-2 was an excellent turntable, reliable, well made and not astronomically expensive.
The Mitsubishi LT-30 is the best vintage linear table I have ever heard and I had Yamaha PX-2 too. Both modified side by side with the same brand of cartridge. Both are very good especially at the price you can get them compared to the newer TT's. At 33 lbs and dead on you can have kids running in the room and not bother the sound on either. The LT-30 has more body and is more musical in my system than the PX-2 or PX-3 (which I still have too). All the bells and whistles too!