I use LaTeX for something people usually never think about: critical editions of ancient and medieval texts. A good critical edition has many typographic details (say: parallel and aligned text, apparatus, typefaces & styles, footnotes, endnotes, margin notes, eventually hundrends of bibliographic references) difficult, error-prone or even _literally_ impossible in word processors.

Of course learning to typeset this kind of work in (La)TeX is not a walk in the park, but as a professor once told me it was easier (for a skilled operator, of course) to typeset a good, not to mention beautiful, critical edition with a Lnotype machine than with Word and similar software.

I do agree that TeX could be more "programmable", in the sense at least of integration with scripting languages; however, there still isn't a better tool and LaTeX 3/LuaTeX might indeed become a solution in the foreseeable future.