Just came upon this thread...figure I'll chime in, and try to not sound like a used car salesman. :) Thanks everyone for their kind words.
A year or two ago, a Gretsch RB 20-12-14 in a common finish, nice condition, was worth $3000, all day long. I sold several kits in blue sparkle, red sparkle, BDP, with matching snares for $3500 - $4000. More rare finishes were going for quite a bit more, and still are. White Satin isn't exactly rare, but it is more desirable because of the Elvin connection.
Things slowed down, obviously, and now an original RB 20-12-14 in a common finish, nice condition, no extra holes, can be had for $2000 - $2500. For a while there I couldn't give a 20-12-14 away, but the market has recently picked back up, and I was able to sell two kits, WMP and Champagne, in that price range in the last two weeks. Champagne, especially, is extremely common, and you'll probably find the best deals in this color. If you can find a 20-12-14 kit with no extra holes for $1600, BUY IT!
To Bloody Rich - my prices are all negotiable...very rarely do I sell anything at my listed price. I'm more interested in moving drums, so I'm open to all offers. I also have a few other RB 20-12-14 kits not on the site...PM if interested.
-Bill