Well, the industry certainly doesn't have a good track record. Every time I start to think that it's "not so bad", I'm painfully reminded of how naive I can be.
I've gotta say, I love the idea of fixed prices though. The used market is getting destroyed not just by incentives on new cars, but because dealerships just whore their product out for $5 less/month than the guys across town.
And while I've seen some bad ones (certainly not the worst, from the horror stories I've heard), I've also seen some very good "business offices", where the products are at least presented to you, and not rammed down your throat.
As far as salespeople and product knowledge, some brands do have requirements, but it's just wayyyyyy too easy to fake. Get it wrong as many times as you like until you memorize the right answers. The only good thing about the industry is that consumers' expectations are so low, it's not hard to stand out from the pack.
I think that if salespeople AND customers would just slow down and listen to each other, buying cars would be a lot less stressful. And while I'm at it, let's abolish income tax and mortgage payments too...