hi Dodi,
I guess many of us have faced this question when teeth-brushing that guy in the morning who looks a bit consternated out of the mirror after the question has been spoken out...
well, You know my obs.mate who owns a 16" RCOS on a paramount under a 10" homedome and me, the crazy guy with the 9",5" and 4" tmb apos sheltered by another 10" homedome, we have also once had the idea to calculate this.
well, we started with a smile (a positive radius on our mouths

) and even just before we entered the numbers into the calculator (after we realized the numbers) we s t o p p e d that game (with a very suddenly upcoming negative radius of our lips,...

and immediatly changed the topic and headed back to our equipment...(just kidding...)
honestly:
I think the most important thing that matters is, that we all find recreation and a very good time under the night skies and we love the stars, nebulas, galaxies, planets,...
why imageing? all those objects have been imaged so often and in such a high resolution that it is not necessary to do this again...? that`S not important to me.
we have our origin in starmatter, the very heavy atoms forming our bodies come from the supernova remnants, and by trying to image them or even only observe them visually, being assambled by those atoms... hmm...perhaps this is simply an expression of our innermost wish to find our roots and by doing so we pay tribute to them...like children respectfully looking up the their parents...
best regards
Dietmar