The typical excuse is file space. The next excuse is privacy/security concerns. The next excuse is usually that other tools do it better (SharePoint, svn, git

The typical excuse is file space. The next excuse is privacy/security concerns. The next excuse is usually that other tools do it better (SharePoint, svn, git) for the types of files that really matter. MS Word has a Track Changes feature that kind of does this, and it's a pain because you have to remember to remove the revision history before you publish the document because it can expose details about the users that edited the document.