Well...I went to a local audio store and bought the 685 s2. List price was from $750 to $800, depending on where you looked. My price: $616. It was Thanksgiving weekend and the salesman and I knew several of the same audio guys. After setting them up in a configuration very similar to what I have in my home, I grew increasingly impressed. I was going to walk away and come back after the new year...but...he asked me if I was ready to buy at a good price. I asked him how good. He disappeared for a minute and came back with the $616. He had indicated these were the best selling speaker in the world right now. I never expected that big a discount on this product.
Now for the speakers:
Wow! I put these against a wall and near the side wall, expecting very little imaging...but they are fantastic! For testing purposes I used the Eagles "Hell Freezes Over" DVD, "The Heart of the Matter" track. I had my wife sit and close her eyes and listen...and she started to cry...but that's unrelated. She could hear what I was talking about.
My Index+ are wonderful speakers, and have served me well. I still like how they sound...but...The 685's are so much more that I don't think I'll miss the Index. Besides, they'll go into my "music" room and replace my Epos ELS 3's which are going into my surround system.
In summation, $800 is a fair price for the 685's and, if that was the best I could do, I'd still buy them.