You will probably all consider this an even stupider question, but who cares if your keys get shiny?
I don't mind shiny keys. In fact, sometimes I find it preferable. It makes it easier to feel your way around without having to look down, and I think it looks good. It breaks up the uniformity of looking at rows and rows of identical keys.
I find it hilarious that 1/2 of the forum is terrified of the print on the keys wearing off, while the other 1/2 will willing pay more money for a set of blank keys. Oh, my god, my J and F keys have had their legends worn off! I don't know where they are!