Is the B&W 600 series a good value?

Totems might be an interesting option. You can get a lot more speaker by not paying for the B&W name.

The new B&W series does look great and fit your criteria of being an aesthetically-pleasing speaker. I have heard the 684 briefly driven by an NAD and there is nothing bad about the sound. My impression is it is slightly more refined sounding than the older 600 series although I may be comparing it with the 603s1. The drive units have been improved and sonically the high frequencies do sound smoother with better integration between the bass/midrange and tweeter. The 685 and other models in the same series are however made in China, and I believe B&W took this route to cut manufacturing costs. Quality-wise I have no comment but B&W has certainly come a long way coming up with a classy speaker in the budget range that does not sound too budget.

It doesn't hurt to explore other options either. Aesthetics are very personal so just go with your heart(and eyes).

I had B&W 602 S2 speakers. They are relatively efficient speakers for a bookshelf but subsequently lack bass and body. They're also bright. I found Totems to be better in every area, including looks. If you have a dealer near you I'd suggest you arrange a demo.

Only when you demo them in your room. Otherwise, value is meaningless.

Koven - I would look around a little more before you commit. B&Ws are not the last word in speakers. I had B&Ws for years, a similar budget as you (for speakers) and shifted to Magnepans and the difference has been astounding. Visit a couple of audio shops and do a bit more research. You may come back to the B&Ws but with more perspective and understanding.