Hey saugertiesbob,
I own a pair of those really fine B&W subs and paid my excellent dealer 10% off of retail. My system is low six figures, most bought at high discount.
The room compensation software is world class and those subs may be the highest quality product they sell.
Worried about B&W going out of business? They are one of the largest, longest lasting companies in the industry. Doubt that you own anything from a more stable company.
Good listening...