The first high quality/expensive speakers I ever heard was in a high end dealers home. I can't recall the model; they were referred to as Montana speakers, but from what I remember, they looked like the WAS. This was back in 1994-1995.
They were quite impressive. Given their intimidating size, I was amazed at how great they sounded at low levels. These speakers introduced me to the realm of imaging and soundstage. I knew nothing about home audio and was completely blown away by what I experienced. I also had no idea that people would spend this kind of money on home audio, as these speakers were $65K for the pair. That was a ton of money back then.
I would like to go on a road trip and hear the PBN Audio Sammy.