Damn straight. They're out to fuck you blind.
Dealers try to mystify and generally complicate the process of buying a car by offering to arrange financing, making you a trade-in "deal" and obfuscating the true cost of the car. Fortunately you can get a detailed break down of the dealer's costs (including factory to dealer incentives) from Consumer Reports. Then you arrange financing elsewhere (or pay cash), sell your existing car yourself, decide on how much markup you'll pay, and resolve not to buy any additional services or warranties through the dealer. If you do those things you won't be walking into the dealership like a lamb to slaughter. They might as well try to fuck the Rock of Gibraltar. Some of them will try, but you just walk out the door and find a dealership that will sell you a car on your terms.
The last car I bought I walked into the dealer; the salesman saw I had the printouts and said, "I'm not stupid. How much are you going to pay?" I named a price 5% over the dealer's true cost. I could have opened with 3%, but I appreciated not having to go through the whole ridiculous ritual. It was a reasonable offer and the salesman immediately accepted. Half an hour later we finished up the paperwork; I dropped off a cashier's check the following day and drove my car off the day after that. It was all low-key and civilized, and by executing the deal quickly the dealership earned a fair paycheck for a couple hours of work.
This is the way buying a car should be: you tell the dealer which model you want, hand over a check and drive off. Letting the dealer do anything else "for you" is asking to be screwed over. Despite what the salesman claims, there is nothing the dealer can do to make your life simpler, except maybe fetching your plates from the motor vehicle registry. Do everything else yourself, including determining the price you'll pay for the car.