As an dealer of "pretty decent" audio gear, I was proud of our product selection at the time. I got word that the Polish national champion string quartet was coming to our area. So, I got tickets. About 47 seconds into the performance, I hated every speaker we sold. Lower midrange detail, as a example, was simply non-existent by comparison. So, I knew the vocals weren’t "right", nor the piano, nor electric guitars, etc. So, I went speaker shopping. And, amp shopping. And, source shopping. And, cable shoppping. And power delivery shopping. And, accessory shopping. Until we got closer to "live" music. Which we did.
The reference to "concert quality sound" is a powerful and effective marketing tool. Reconnecting to the emotional experience of a live performance is the pinnacle creating a real connection to the equipment and the listener. Classical music is often used in marketing in that it represents the ultimate statement of refinement and sophistication. Even those who have little real life interaction with the genre can relate.
Some will develop "a very sensitive antenna" as it relates to musical nuance in a system designed to play music at home and strive for a level of perfection. Some won’t. And, some will simply settle for "good enough", which is not a wrong answer if it makes them happy.