2 things to note:
1. I saw a plain jane Glock 27 on there for 750.00.......just because someone is asking, doesnt mean they are getting.
2. Colt revolvers have a unique following that in my experience, trumps the the blue book values, you might have to wait a while to get full value but I do know Colts generally run more than BB.
Im not a Colt lover by any means, but if I were to have only one....it would be a polished python.