Comment TeX vs. Office (Score 4, Insightful) 674
Office will take over from TeX when (at the least)
* It works on Linux (which lots of academics use.
* It works well with version control, making it easy to merge edits made by different people
* It is easy to generate tables from scripts and glue them into the document
* It is easy to take a pre-written document and put it in a new style.
Now, it's possible Office already does a few of those, and it's also very possible TeX does an awful lot more than that.
The cost isn't really that much of an issue for academics, as every university tends to have a site-licence for Office and other apps. Despite this, I still never use it.