It seems a bit odd to charge for something like the window sticker, especially if it’s not clearly explained on the Audi USA website. If it doesn’t add any real value for you, it makes sense to question it. I’d recommend reaching out to the dealership or Audi customer service directly for clarification. They should be able to go into more detail regarding the reasons behind that cost inclusion and whether it is really required. If you are not interested in the window sticker, it could also be beneficial to find out whether there are any ways to exempt that cost. Speaking up for what you think is right is always a good idea, but it's especially important when making a big purchase like this one. With luck, they will assist you in clearing things out.