Anybody have any experience with Costco, or AAA purchasing services or things like TrueCar? Could you share what you think. Also should there ever be a marketing or advertising fee the Hyundai tags onto the Monroney invoice. I once purchased a Toyota that had no charge for marketing on the window invoice, yet they tagged on $500 for advertising. I called AAA, not sure the person really knew, but they said it was legit. Did the dealer in this case just make another $500 in profit. Thanks