Interesting perspective for sure. I got into this mainly coming from live sound and studio work and wanting something enjoyable but accurate and detailed enough to mix on when I’m traveling (or just need to not wake up my kids mixing at 2am). I agree that critical listening can be fatiguing but I haven’t figured out a way to stop. Its definitely ruined some music for me that I liked before I was listening more critically. As far as gear I do the same as I do with gear for live sound. I buy the most practical thing that will give me all the tools I want/need. As better tools come out I sell old gear and upgrade, I think headphones are kind of the same idea. I don’t want 200 pairs of headphones sitting on a shelf but if I hear one that will do the job better than my daily drivers I’m probably going to upgrade.