Why would you suppose dealer sales staff might be 'experts'?
Many of them could have little or no training and may only have been in the job a short while and picked up little real knowledge.
Some dealers use good people, but lets face it, those are probably hard to come by.
I think you are more likely to get well informed opinion here.
You wouldn't believe the crap I've had told to me at dealers. When they realise they are confronted by somebody who actually knows their stuff, they tend to spot another customer who requires immediate assistance and move away .
It is impossible for anything digital to sound analogue, because it isn't analogue!