It's all a matter of perspective. If you're a hunter/shooter, than how well the gun works for you is of most import. If your a collector, than it is all about condition. Collecting is about one of two things, scholarship or ego. If your an investor, than the profit is in the buy and there is little real affection for the items. It seems in some respect that all answers are correct.

To return to the original question, no and no. From a practical standpoint, I see no reason to shoot the value off of the gun. I no longer believe that a pristine specimen adds to scholarship as any 80% gun will tell us anything we need to know about original finishes, engraving styles, etc.