I won't try to dispel any myths and I won't try to absolve the business for practices that are indeed unseemly at times but I will share my viewpoint and I believe it's a unique one unless you know other salespeople.
I've mentioned the advantages to the consumer that exist in today's auto/retail environment and if used correctly,assure the consumer a fair deal and satisfaction as far as the purchase as a whole.
Go to Consumer reports and find the cost of that engagement ring you intend to buy or maybe the new kitchen your wife wants......you'll find the cost of neither..........in any publication and that's a fact. But you'll willingly walk into my place of business unsolicited and wave that cost in my face or at least I would if I were buying a car........if I'm to make a living and feed my family(or in my case,my habits....LOL),I have to find a way to make profit on the deal and I did.
Of course I ran across scores of liars and know nothings(good thing they're all in the car biz......am I right?) but I also worked with many professionals who cultivated outstanding repeat/referral bases to the point where they didn't have to touch a walk in and you don't do that without taking care of clients. You might have to weed your way through a bunch of losers but if you find a car guy or gal who has your interest at heart......stick with em.
I had a used car lot and sold cars for 300 and I also sold new Lambos that wee three times the money a certain braggart likes to crow about and I'll tell ya this.........you make the money a customer lets you make in some cases and a bunch in other cases like a high demand vehicle.
Ohhh..........and I always told the Lambo buyers how good they negotiated and I usually did so on the day I deposited the 10K commission check!