Vintage vs New

If you are happy with the way your system sounds then I would leave it alone. Some times that is the hardest part about this hobby. I believe that newer isn't necessarily better.

If you are looking to improve the sound - there are several ways to make improvements without replacing speakers. ( more power = cleaner sound)

If you feel that you absolutely need new speakers, then I would look beyond B&W. There are a lot of option especially in a used market. 

I’ve been listening to the same pair of floor standing speakers for 44 years. They were manufactured in 1955. 

I used to shop once a year to see what else was out there that was significantly better at a reasonable price point, or even just somewhat better. 

I stopped bothering with this exercise about 10 years ago.

This guy just loves to troll!   One of the most ridiculous, ignorant  comments I’ve heard from this guy!  I have heard several of the tekton speakers, and owned a few.  They actually sound very good.  But to say that nothing comes close in a vintage sense, is just pure trolling!  Just one of many offerings from altec smokes the tekton very easily IMHO. They were made in he 60’s, used some of he best Alnico drivers made, even by today’s standards, and can sound truly world class in the right system.  Bet I’m getting a rousing Amen from many here.  I’m telling you, this guy just does this to piss people off.   Dont comment to this guy, maybe he’ll go somewhere else!    

                                                               

IMHO: Here's two pairs of speakers from 1981 that will indeed hold a candle to all Tekton speakers past and present models.
        
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              http://www.thevintageknob.org/jbl-4435.html                                        
              http://www.lansingheritage.org/html/jbl/specs/pro-speakers/1981-4355.htm