It probably would, John, but I'm using Categories to facilitate some automation with the "Assignment Action" -- for example, any image with an INT tag automatically un-assigns from EXT, and vice versa (that part's easy, the challenge is getting child tags to un-assign siblings of their parents). Probably what I should do is try to better understand Attributes and how they work, since that would allow me even more freedom.
All of this is an effort to accommodate (and automate, if I can) a very clunky and tedious workflow required by production studios for location scout books. One of the things I like about IMatch is you can get it to do a lot of work for you if you know how, but I'm not an expert so I'm learning as I go.