I 100% believe that truly enjoying an audiophile system and being able to hear subtle differences is a learned trait. Anyone can hear the difference when they listen to a "good system" for the first time. However, understanding what they are hearing and comparing systems takes time and practice. It also comes down to both individual preferences and the importance of the subtleties to that person. Some people, such as my wife could care less about the differences. She enjoys music, but certainly not to just sit down and listen. She actually has a hard time understanding when I do go into the music room and just listen to music.
This is why I say to really understand, perceive, and care about the differences and enjoy the differences is something that takes time to develop. I always loved listening to good music, but understanding what I preferred and perceiving these differences is something that took decades to develop.
Many times, I listen to music because I like the artist. For example, I really love Amy Lee's voice, and I have to get anything new Evanescence comes out with (which is almost always years waiting). I would not say their albums are "audiophile" recordings, but I enjoy the music. Other times I want to sit and listen to the highest quality in my collection. It all depends on mood I suppose.
I have never been a person who likes A/B comparisons, especially with neophytes. Comparisons are not easy under the best circumstances, and very hard under most A/B comparison sessions. Familiarity with the music/track is essential. Enjoying the particular track is also important. Many other variables come into play. For example, I have had my system in a small room for quite some time now. Doing a comparison in a larger room would not be conducive to me hearing differences. Listening with a room full of people would make it damn near impossible.
The type of speakers being used. For example, if the comparison was done using horn speakers, I would probably find the entire process irritating. But others in the group might find that listening to a British made speaker was not up their ally. They want the dynamics and thump of large woofers and horns, purely as an example. I might enjoy one thing over another, but comparing different type of amplifiers, or cables, or many other things, would be hard in these situations.
This is why I say I have heard Class D amplifiers sound very good. However, every Class D I have actually owned and listened to in my environment, with my music, my DAC, my other gear, have sounded rather sterile. What I describe as lacking the warm and fuzzy feeling to me. They were good, however not inviting long term, like something I look forward to sitting down and doing serious listening, sort of like when I listen to my Woo headphone amp with top notch NOS tubes and my Abyss headphones. Or, listening a superb British speaker with a Class A amplifier (First Watt, or the tubed Audio Mirror for example), or for long term satisfaction such as McIntosh, MBL, Job (all of which I enjoyed the most in my system). A very inviting listening session is how I describe it. This is a very difficult A/B comparison under the best of circumstances.