[Tex/LaTex] Convincing someone LaTeX follows typesetting best practice

Question

Often, when presenting a LaTeX document to someone, they will complain about how the margins are thick and how lines should be at a line's height apart. I often find myself struggling to convince them that LaTeX produces the best typesetting contrarily to the ugly documents they've seen all their life (excluding professionally typeset books and documents)

What would be the best convincing argument in favor of LaTeX typesetting?

(As a side note, I know this is an unusual question that some might consider subjective, but it can still be responded with an objective answer and would be useful to know for the community.)

Answer 1

I found that non-LaTeXusers care less about good typography. Praising LaTeX strengths with regarding to its typographic capabilities falls on deaf ears. Perhaps because good typography is invisible and bad typography is everywhere. The british designer Craig Ward created a nice poster illustrating this.

As a result the two arguments that I used successfully over the years have nothing to do with good typography.

• LaTeX’s stability. From my experience this argument unfolds its full power when used in a thesis last-minute emergency situation. When the work put into a 100+ pages document in one of the wordprocessors is at stake and the tables and figures start leaving their pages and truly float around. Unfortunately they have to make this experience themselves at least once.
• XeTeX/LaTeX’s multilanguage support in a single document is as far as I see it unmatched.