Text printed on the best paper with no margins or unbalanced margins is vile. Or, if we’re being empathetic, sad. (For no book begins life aspiring to bad margins.) I know that sounds harsh. But a book with poorly set margins is as useful as a hammer with a one inch handle. Sure, you can pound nails, but it ain’t fun. A book with crass margins will never make a reader comfortable. Such a book feels cramped, claustrophobic. It doesn’t draw you in, certainly doesn’t make you want to spend time with the text.
On the other hand, cheap, rough paper with a beautifully set textblock hanging just so on the page makes those in the know, smile (and those who don’t, feel welcome). It says: We may not have had the money to print on better paper, but man, we give a shit. Giving a shit does not require capital, simply attention and humility and diligence. Giving a shit is the best feeling you can imbue craft with. Giving a shit in book design manifests in many ways, but it manifests perhaps most in the margins.