This discussion is very timely as I am also exploring many of these same speaker. I currently have Harbeth 30.2 XDS, which I really enjoy, but I remain curious as to what the next step up might be. I too am drawn to the new Joseph Audio Perspectives, but have been challenged in finding them anywhere in or near Massachusetts. The QLN 5's are also on the list and I will explore some of the other suggestions made here. I am in a budget range up to $25k and I don't have the WAF to contend with (but I do have my own sense of aesthetics that would reject, say a lemon-yellow set of Wilson's without even listening!)
Thanks for letting me tag along and listen to the great ideas being floated