And I don't disagree with any of that, which is why I worded my previous response the way I did. A good audio retailer will help a customer determine what he likes and doesn't like in sound, and they will invite that customer to bring in his entire existing system, if any, to let him hear how each component may or may not be limiting his enjoyment compared with other available products. In-home demonstrations as well as delivery and setup of the component or system purchased was also part of the service our customers could expect. What we wanted to help customers avoid was the merry-go-round of continually buying and selling components in hopes of finally getting a system that worked for them; our goal was to establish, by audition, what would work for them so that their first purchase was a long-term, satisfying one.
I guess I've gotten so used to the crap quality of service that makes up the audio sales world nowadays, at least for most people on here, that I don't even consider that people have an option for that anymore. I always recommend to people that they listen in their own home. You really can't know what it is unless you listen there. Thankfully, I do have a good local dealer, and have an excellent relationship with him. But I have 6 million people living in a 50 mile radius of where I live, so there are still some decent stores around. But it seems to be turning into the exception, not the rule.
What you recommend is certainly how things should work. A good audio dealer would become a lifelong friend. They would know what YOU liked, not what they liked, and recommend accordingly. They would also know how to introduce you or challenge you to new gear or music. I know I had that relationship many times. And it certainly is lots of fun!