This was an interesting thread to me, myself having sold good stereo equipment and having nearly 5 decades experience as an audiophile. First lesson from the thread is how important synergy is. Second lesson is just how tweaks and complex playing records at a high level is. My shaky hands don’t allow me to tweak the way I used to with phono cartridge and arm adjustments, hence my relief at the vast improvement in digital reproduction over the last several decades.