Fair enough. My wife uses Adobe tools for typesetting, she is a professional (she pays $100/month for her CS subscription, however). I'm not a professional, I've looked at the amount of effort needed to refine output in these tools and they make LaTeX look usable...
I find that in most cases InDesign takes an order of magnitude less time/effort and dramatically less frustration to get a particular careful output than MS Word, LaTeX, or other commonly available tools. Your wife probably has difficult requirements and exacting quality standards, and could likely get output with quality equivalent to common documents prepared using amateur/automatic tools in a much shorter time, if she wanted to.
It’s almost impossible to do professional quality typesetting in MS Word. Last time I really tried was about 10 years ago. I spent like 4 hours trying and failing to fix basic typographic mistakes in another person’s 20-page document, and then gave up and did the whole thing over in InDesign in 20 minutes, with great results.
In LaTeX, you can theoretically do anything you want but unless there’s already a template for it (or you have numerous or long documents targeting the same output style, for which you want to make a template and then mostly rely on automatic layout), it’s going to take a huge amount of time. It’s a good tool if you want output that is “good enough” for many practical purposes without direct human input, but it is especially difficult to do anything special-cased for a particular spread (moving images, text boxes, diagrams, ... exactly where you want them).
LaTeX is great for things like auto-generated documentation, long structured outlines, legal documents, or math papers full of complicated formulas. LaTeX is abysmally ineffective for posters, magazines, or the like. I find that for the vast majority of content in between those extremes (e.g. college humanities homework, non-technical journals, resumés, menus, coffee-table books, novels, poetry, personal letters, ...), InDesign ends up giving nicer output with less headaches.
In my field there are always templates. LaTeX, or I guess TeX, works well until it doesn’t, and then fails in ugly ways (quite the opposite of Word, which will work all the time not very well). So overflow and underflow paragraphs are possible, so are orphans, though it tries to avoid them if the output is decent. This is nice because I can fix all my problems usually by refining my content (changing words, orders, etc...), I don’t actually have to dig deep into TeX to otherwise modify the format! This is quite usable in general, though there are huge debates on whether it is appropriate.
From what I can tell, Adobe follows the more technical approach, though I’ve only looked over my wife’s shoulder. The fact that I’m just producing PDFs with LaTeX is also different. If I’m writing a web essay, I don’t mind using straight HTML/CSS, even markdown doesn’t really convey many benefits for me.
Web essays is definitely not the place to use professional typesetting tools. Browsers are simply incapable of doing professional quality typesetting of the type books have had since the 15th century because the output environment is too heterogeneous, unless you abandon html and render documents as SVG or PDF or something (I would not recommend doing that). Authoring tools won’t help you. On the web the best you can do is make (or purchase/find) a decent CSS template and hope it’s readable enough for most viewers on most devices.
I've always been curious: Pretend I'm totally ignorant, and have no idea what need a typesetting tool fulfills. Someone who has used and been happy with Word / Open Office for years to write documents. What does LaTeX/InDesign solve for me, besides "nice looking math" that I'm not getting out of basic word processors? How do I know which one I need? I honestly have no clue. If I were to start writing a book tomorrow, I'd just open Word. Why not? What am I getting when I invest either the time to learn LaTeX or the money to buy InDesign?
For writing a non-fiction book, you should probably use Word or something similar. Just make sure to avoid any formatting tools, only use semantic markup. Word is a pretty decent authoring tool. The end result can then be imported to a typesetting tool for formatting.
InDesign is used when you need precise control of the output. For instance controlling exactly how figures are placed, you might more advanced control of how text flows between boxes, etc. It also has tools for very precise control of how the type is set, how big space should there be between letters and words, how should the right edge of columns look, should there be different number of columns on different pages, etc.
Some of those things can be somewhat managed in Word, but you'll have to fight a lot of the automatic stuff, really not worth it if you are a full time design professional, much cheaper then to buy an expensive InDesign license.
Latex is pretty good at having sane defaults. This was a bigger issue back in the days when the defaults of Word were frankly terrible. Today it's to a large extent about style choice. If you publish in an area where Latex dominates, the Latex styling will make your document appear as more serious. Latex also generally uses a more advanced type setting engine, for example it might join "fi" with ligatures etc. This can also improve the look of the document.
Some people like the fact that you can manage Latex code as raw text. For instance using a VCS to manage version history. Word has some built in version management functionality, but it's quite clunky compared to Git.
Personally I gave up on using Latex after my first master thesis and tend to use Word. I get too caught up in the formatting when I use Latex. Maybe it's too much power to handle for me?
I just updated my resume two weeks ago. Too bad couldn't find the original LaTeX code, so I had to write a new one.
I tried looking for some free MS Word templates, and didn't find anything fit.
If you're doing many one-off designs, I'm sure something like InDesign is faster than TeX. However, if you are producing similar-looking documents, the effort of writing your own LaTeX class is relatively low.
There's also other advantage to using LaTeX, and that is the flexibility that comes with macros. Need to change some notation mid-way through your writing? It's trivial if you've used macros. Need to simplify some commonly used pattern? Define a new macro!
Each tool has their place. Except Word, Word just sucks! (j/k, Word is brilliant when doing collaborative edits with non tech-savvy people, the track changes functionality is great, and not easy to replicate in other environments)
