Yes the aesthetics of a book matter to me. I'm retired, my eyes are not young and I do not want to strain my eyes to read for pleasure. Glasses and good lighting can only get you so far at my age. Thank God for smartphones with lights and zoom features.

A book like that feels more like artistic expression and if that is more important to the author than sales or profits, good for them. As long as they understand that they are limiting their reach by making it inaccessible to some people.