Still looking for speakers in the 10-20,000 range

I would get a KEF Blade2 in that price range. You need to get a used pair or demo but I have seen then at $15K and up. I am going to demo a KEF Blade2 at a dealer in Newport Beach, CA soon and he has demo pairs of Ref 5 and Blade2 that he is looking to sell. I should say I am demoing amps for the Blades since I know I will buy either a Ref 3/5 or Blade2 depending on the room.

Why not be different and give Kendrick Sound a call in Tokyo for vintage  superior  speakers.

I like Vandersteen and Tannoy. Look for a pair of used Tannoy Westminsters.

Great conversation going. As a recent shopper in the same price range, my biggest single takeaway after hearing several speakers is that there really are NO bad speakers at the $10k-$20k per pair price point. Not as long as you're sticking with the larger, more well known firms anyway. I cant speak for the tiny builders as I don't have any experience with them, with the exception of Ryan, who's speakers I think sound great.

So, does a B&W 803 D3 sound better than a KEF Ref 3 or than a Focal Sopra 2? Only you can decide that, but they are all lovely speakers. Just go listen to them. No offense to those who are touting one manufacturer or model over another, but these speakers are all so good that other peoples' opinions of them mean almost nothing to me. Perhaps if the speaker was universally hated I'd listen to and heed the reviews, but none of these speakers are.

FWIW, I purchased the Sopra 2.

good post.  It does all come down to what flavor you like in your system.  How will the speaker match up with the components you are using.  To me, that and the room are the two most overlooked things.  Lot's of great choices, so go listen and let us know what you are hearing.