Tonearms without anti-skate, damage to records?

Yes, "not cheap" is an understatement.  I went to an audio show where a representative was in the market area of the show and had the 5T arm (mostly used record dealers and headphone sellers are in this area).  He told me that he could sell me the arm right there.  When he told me the price, I looked in the bill-fold area of my wallet and declared that I didn't quite have that amount (it was something like $20k).

I have not seen the LT, but I did help with the setup of a Schroeder arm on a friend's table.  That was a bit scary because the arm was suspended on a very thin monofilament nylon fishing line that looked pretty easy to snap, and both the arm and the cartridge were "not cheap."

@elliottbnewcombjr +1 so correct AS is very important. Just was at Axpona and went to a lecture by JR of Wallytools who showed videos of the cantilever movement with and without AS applied. Unbelievable how the cantilever vibrated back and forth with incorrect AS but once AS was set no back and forth movement of the cantilever assembly

Unbelievable how the cantilever vibrated back and forth with incorrect AS but once AS was set no back and forth movement of the cantilever assembly. 

For how long? For the length of the side? I doubt it very much. Mr. Boisclair may have demonstrated a short segment where AS was optimized but barring one of the tonearm designs referenced above or the like, optimum AS does not exist for very long. The concept is similar to null points and alignment. And for good reason. 

And guess what? Cantilevers are designed to vibrate. Suspensions and motor assemblies are designed around real world conditions. Compared to surface contaminants, imperfect pressings, EMI/RFI, alignment compromises, limited stereo separation, signal to noise ratio limitations, wow, rumble, flutter, speed and so much more, you're at some point losing the forest for the trees. 

So as I said, AS is important but so are many other aspects of cartridge set-up. And as I said, more damage can be done by employing too much AS than by using none. This is similar to the concept that more damage can be done by setting VTF too low than too high, assuming you are still within a reasonable range of optimum.

Eventually every stylus tip is going to need replacement. And, where is the scientific data as to the extent of right channel premature wear when not using AS?

Forgive me for straying towards the pragmatic. The real world. How many times have you picked up a used record and been amazed that it sounds better than many/most of your new pressings? Do you really think that the previous owner(s) had their AS dialed in? 

Hasn’t Peter Ledermann testified to the uneven wear on styli he has inspected personally, due to radically incorrect AS? So there’s your evidence, presented by an expert witness. (I agree with you that there’s no such thing as a perfect amount of AS, but you’d like to be in the ballpark.)