Are Bowers and Wilkins speakers overpriced?

Many audiophiles do not incorporate an EQ in their system so just adjusting the highs and lows is not an option. 

I wasn't referring to EQ. Turning down the treble, or turning up the bass is done first by speaker/room mods/angle positioning. If after that its still not working, look into appropriate gear (amps/preamps)  etc...

Many try to run B&W with amps that can't do 4 ohms well. Look at the amp's specs. The amps struggle and you get lean sound output - which makes the Highs dominant and fatiguing.     

.....and at the listener end. Your ears need to be the close to the same horizontal level as the midrange/tweeter. 
Raise/Lower speaker height or get a proper height chair.   

@ct0517 " Many try to run B&W with amps that can’t do 4 ohms well. Look at the amp’s specs. The amps struggle and you get lean sound output - which makes the Highs dominant and fatiguing."
The problem with that statement is that every time I’ve heard the 800 D3 series at either audio shows or dealers, the treble has been irritatingly bright and edgy, and they are no doubt using optimal amplification in those settings. I wish it weren’t the case, since they do sound good otherwise. Perhaps it’s just a matter of room reflections, but I don’t hear that same degree of treble edginess with other speakers, even the B&W 700 S2 series. Maybe it’s just that the 800 D3 series need sizable rooms in which to operate.

@mtrot 

 and they are no doubt using optimal amplification in those settings.

I would not assume this.
Personally, if I am looking at spending that kind of cash on speakers, it would mean I have too much stake in the game to trust a dealer setup, good or bad sounding, even if recommended amplification and other gear is being used.

https://photos.app.goo.gl/rJbGXxq5xMjbQS9EA

Dealer setups are one time, temporary events, and everyone's room and contents are different. Some speakers are so big, their size in regular rooms affects room acoustics. Same as a couch.

So in this situation, if I was a serious buyer, I would be asking the dealer to put the setup into near field for me to hear. They will not have an issue with this. Nearfield is the closest one can get a look into what is possible. Everything outside of Nearfield is a compromised illusion due to room reflections.

If after Nearfield you still feel the same way - proceed or look elsewhere.