I recently found a great deal on an open box set of the newer CM series from B&W and after auditioning them, they sounded almost identical to the 602’s. Slightly better detail. VERY slight, but not $1000 better. I returned them.
At this point I am considering stepping up to the 805. Typically in the $1600-$2000 range when used. I have also strongly considered the Ascend Sierras because of the huge number of recommendations. I like the sound of the Paradigms too.
The last few months I have been in the "I have to upgrade mindset." But as I sit here listening to my current system, drinking my coffee and reading Audiogon, I think I have finally calmed the urge. What I have sounds damn good. Good luck on the never ending quest :)