There was that place called Hi-Fi Farm that sold some big electrostatic speakers made in the Netherlands. They were bigger than the biggest SoundLabs, don't know better or not. Retail was about $100k, I saw their demo for I think $40k.
Hybrid speakers like Avant Garde Duo, Rogers, Martin Logan etc. is never a good idea. You don't want hybrids because you will never achieve the proper integration, not that you will fully achieve it with the Trio. I guess, overall best dynamic speakers are still the best speakers. And best tube amps are best amps. What else is new ?