I don't. For a long time now, every car I have bought I specificly state that there is not to be any sticker or dealer logo on my car. If there IS one, a have them remove it. I think it detracts from the car and I (like you) see it as free advertising. The only exception is they put there name on the license plate frame (holder), I don't make an issue over that but DO remove it when I get home. So far I have never had a problem with my request of them removing their stickers. So, I don't think I am the ONLY one that does that.