If for display and will never shoot it again, go ahead and reblue. But send it to someone who you know does it well. Some re-bluers overpolish and you lose sharp edges and in some cases the roll marks.
But I'll shoot it the way it is. That way I don't have to worry about the new blue finish being scratched and worn again. Besides, I can see from the picture, there's nothing wrong with it having a little character.
Had a shooting buddy who had only one Colt Gold Cup Mark IV that he bought new, practiced and shot competitions with it. It was the sorriest looking 1911 on the range, with 90% blueing....gone. But he won practically every shoot he joined with it.