"For me at least, there’s an advantage to "willful ignorance" when it comes to audio."
I agree with this statement. There's nothing wrong with staying in one's comfort zone. We still service vintage gear. Many pieces are 45+ years old. To their owners, these solid examples of "consumer gear" from the era are musically satisfying and represent the best of the best in their audio world. I am certain that they wouldn't trade a stack of current "audiophile gear" at 10x the value or their equipment even up, for a variety of reasons. So, I listen intently when they tell me how great their system sounds, and try to uphold the promise of not having their equipment leave here in worse shape then it was when it came in.
Personally, I hit the "eject button" about 10 years ago on my "reference system." The reasons are complex.
As mentioned earlier, inviting people to audition "better gear" was the right thing to do in my opinion as a dealer. Our Mission Statement read something like: "Helping people reward themselves for being successful." Denying them the opportunity to take their musical experience to another level was unethical in my opinion. As I told many customers: "You live there. I don't."
Sounds like you're still enjoying your system, and have made good choices. Well played (literally).