Will it shave any better with a mirror finish?? Probably not. Will it look like new with that mirror finish? Probably will... if you polish it up to a mirror finish what will be your thoughts when you pick it up to shave each day? Probably not much because it will look like new... What will your thoughts be when you pick up a razor that has patina but is otherwise well taken care of? You will look at it and wonder where has it been, wonder who has held it in their hands. It will make you think every time you use it about its long history.
+1 for the patina
I am a Descendant of Nobility, Leicester of England and Von Hinrichs of Germany.