- Interacts well with version control: it is trivial to maintain a LaTeX document in a git repo, and the diffs are readable (especially with --color-words)
- Makes it possible to programmatically generate formatted text, tables, graphs, possibly from external data sources, either with the internal macro language or through an external scripting language
- Has reasonable separation of content and formatting. For example when submitting the same document to multiple conferences it is almost trivial to adapt the content to the required formats.
If writing mostly prose, these may not matter much, but for technical writing I would rather not do without them.