I am new to reading this forum, and because I recently purchased the 805 Nautilus, I had an interest in this question. Out of curiosity, I researched three widely-known used-gear web sites, Audiogon included,(as far back as the sites would allow) and the subscription publication, AudioMart, for "WTB" and "FS" ads on the 805 Nautilis. I found 5 people want to buy the Nautilus 805's and 2 want to sell. So, going back several months (close to the time this question was posted), at least in these sources,these totals do not seem to be unusual.
Why lots of B&W Nautilus for sale used?
I see a lot of B&W Nautilus speakers for sale, mostly 804s and 805s and some 803s. Considering the Matrix was around for 10 years, you would think there would be lots of them for sale from upgrading, but no. So is the Nautilus really better than the older Matrix overall despite what we hear??