exactly.....The threshold for any Colt or Smith and Wesson is at least 450 dollars to get into the game and it is rising to $500. You got a fine deal, here is my detective that I can’t remember what I paid but it was less than 500 but more than 400.. ......You did just fine. My rule of thumb is any Colt DA revolver in good mechanical condition is worth $400 unless it's really roached finish-wise. You did much better than that. The hammer shroud is worth about $100 by itself and if installed at the factory a good bit more than that.
Excellent purchase on a fine revolver.