@drbond - no matter how much you spend on any component, there is ALWAYS something better.
Linear tracking arms have one main advantage - there is no anti skating force required since there is no centripetal force pushing the arm away from the center of the record to counteract while the platter is spinning. I had a table a while back that had that which did not sound as good as a $500 (20+ years ago) table I bought to replace it when it broke. It was a Phase Linear 8000 which probably wasn’t set up optimally. I’ve learned a lot since then.
IMHO they add complication in set up and depending on the table may have some type of additional motor or mechanism to move the arm which can add noise. That being said, an audiophile friend got one last year and he loves it. Part of that affection though is the cool factor. Personally, I like low mass arms and simplicity in all parts of my system.