Jack--
I think that because it's "neat" and the price is really right, often, n'est ce pas? At least that was the case with this gun.
These old guns are not routinely encountered anymore.
But, I think I'll leave it in its current state. So often, as collectors, we emphasize condition and want all our guns to look like new. The reality is that many of these old timers have been used hard, as tools rather than as artifacts, and have suffered from neglect.
Part of their charm. I suppose.
Tim