You make the analogy of seeking ever greater audio realism with a drug users endlessly chasing a better high. There's a great deal of truth in that analogy I think.
I think so too. Having never used drugs, although I have abused alcohol in the past and I used to smoke, my number 1 "drug" of choice is and was music. More audio realism gets you closer to the actual performance, imo. That's what I'm in this for; to get a thrill out of a musical event happenning right in my listening room. To get as close as possible to a band playing in front of you. I think that's the general idea of high end audio; to approximate the original performance. Personally, I'll never be fooled that I have a band in front of me, but you can get close, imo.