Interesting topic, and the point made above about finding common ground is awfully smart.
I wonder if some people can not hear the difference in a basic vs super high end system, whereas auto performance has a more measurable aspect: 0-60 times, HP, torque and so on, and watches are consdered investements in beautiful (usually rare) works of art. So because nonaficionado can or does does not readily hear the difference (or maybe is not open minded enough to hear it), or maybe he doesn't feel as strongly about music as you do- he's left with the impression that the a-phile is into the hobby for "prestige" status, or are outright delusional, so they naturally would be dismissive.
I wonder if some people can not hear the difference in a basic vs super high end system, whereas auto performance has a more measurable aspect: 0-60 times, HP, torque and so on, and watches are consdered investements in beautiful (usually rare) works of art. So because nonaficionado can or does does not readily hear the difference (or maybe is not open minded enough to hear it), or maybe he doesn't feel as strongly about music as you do- he's left with the impression that the a-phile is into the hobby for "prestige" status, or are outright delusional, so they naturally would be dismissive.