Awesome little revolver there.
Original bluing or has it been refinished by Colt? In either case it looks great.
Hope you didn't pay so much that it doesn't get to make it out of the safe much. You seem to have wanted one for so long, and it is probably such a good shooter that it begs to be shot.
If I owned one I would intend to keep it forever, and try to forget what it cost in the first place. Shoot it, carry it, and if the perfect bluing ever became significant enough to have a problem with it, have the gun refinished by Colt. Regardless of what it does to the value, I would keep it forever so that makes it less relevant.