This, 100%. There are so many business applications for version control of documents of all kinds. It can be super-useful, it's not that hard to learn, and there is no reason at all to limit the system's use to "things that are part of a software build."
The alternative is the status quo at most places... a directory full of the same document appended with _v1, -v2, _v3.0, 3.1_EdChanges, v3Sandra1, _4-1-2015, _2015-04-03_v6... then just having to sort by date anyway, hoping the most recent one is really the one you want. Or worse, just one document with no idea at all of who edited it or how it got to be the way it is.