I came to this conclusion as well. I love my little 25 nano. I don’t think I would be too interested in anything over 75g at this point in my life.
@vetteguy53081 I didn't answer your original question, but this thread popped into my head this morning while I was watching a video of Julian Sprung speaking at a MACNA event.
What I would miss about my tank is watching life thrive, grow, and reproduce. I imagine many of us are "Biophiles". Here is a slide from Julian's talk: