Stereophile - Sabrina 5

My understanding is that Wilson uses second order (12 dB/octave) crossovers. If that's true the midrange must be wired electricallt out of phase so that it is acoustically in phase. This is common for all second order crossover 3 way speakers, not a Wilson thing.

What I will say is this speaker was $21k 2 years ago 

I don’t see any big changes to justify a $7k price hike ,thsts nuts.

I was considering them last year ,but -0:chance at that price,and very snooty 

little to no discounts. Having owned a Audio store  I know that the speaker including packaging is roughly $25% of the cost , for materials,labor, R&D and profit 45-50% for the dealer on average. 
I buy products at minimum of 20% off including shipping if buying New.

I am semi retired I now upgrade by. Buying mint used within 1-2 years old ,and save over 50% of the products original cost , it makes sense to me .

Wilson Audio has always been a polarizing brand due to cost, off the shelf drivers, company arrogance and even aesthetics. My first lengthy demo was with the Cub 2. It was a ruthlessly revealing loudspeaker that belonged in a studio not a living room. About 25 years have passed and heard various models that have added musicality but still retain an aggressive revealing pro studio characteristic. This past summer heard the Wilson Sabrina V and was left with an unresolved opinion. The Burmester 232 felt underpowered maybe due to the speakers having very low hours on them, The new tweeter which was excellent sounded detached(break in?) from the other drivers. The propulsive mid bass and dynamics were impressive for a small speaker which many Wilson admirers value. In conclusion Wilson Audio offers a very specific sound signature/presentation. Have excellent build quality, customer service, resale value and pride of ownership. 

In a 3 way speaker, having the polarity of the midrange reversed is a well known speaker design technique. JBL pioneered that in the 1970s.