Since it seems to be a hot issue, the stages do indeed clean up from landings real 'purdy, should they want them to look "fresh" for each flight(and I don't see why they wouldn't, unless its just to rub in the "this is a reused rocket!" part).
http://spaceflightnow.com/2016/08/20/spacex-puts-historic-flown-rocket-on-permanent-display/