They are quite fashionable, I have seen them in London in the (very nice) cocktail bar in the hall of the Hoxton Hotel
You can see some on the photo on the left, middle row.
http://www.hoxtonhotels.com/
I did not know they where B&O compatible, as I didn't think they were active.
Once again, B&O was well ahead of its time with the Beolab 3000, that are featured proudly on my bedroom wall ;-)