I guess advertisers think we are all f***ing stupid

What really frosts my balls is when going to a dealer, and looking at a vehicle and it has a "market adjustment" sticker price. Saw one a few months ago that had a MA price 30% over sticker MSRP. Are people really stupid enough to pay this ripoff? How about the "dealer fee"? I went shopping for a late model used car a couple of years ago. agreed on price and had the sales person write up the contract. The first thing I did was cross out the $850 dealer fee. I was told that is added to every sale. Said "not this one" and got up and walked out the door. Before I got out the parking lot my phone rang "we can waive that charge" come on back. There were a couple of other things where I got what I wanted, by my willing to walk out the door. If you can't get the deal you want, be willing to walk away. Even at the end, when paying. The dealer said they couldn't/wouldn't accept payment using a credit card. I got up and walked out the door. The next day I was back (after they called) and used two "cash back" cards. When the card statement came, I did a balance transfer to different cards that had no interest for 18 months, and the cash back of the first cards equaled the transfer fee. So free financing for 18 months.
What law says you have to buy on their terms?
Could not agree more with this, I am almost exactly the same way. I have no qualms about walking away from the sale unless I get my terms. The "dealer fee", or sometimes it is called "processing fee" is nothing but a bullshit charge designed to make extra cash for the dealer. Last time I bought from a dealer they tried to tell me that the fee was for registering the lien on the vehicle. Ha! First off, that is part of doing business, secondly it doesn't exist, and finally, I was paying cash for the vehicle! I got as far as the door before the general manager came out and apologized.