I draw the line at character addressed displays, i.e. what Unix used to call "visual" editors. Especially when it comes to programming IDEs/editors, where your main UI area is a matrix of monospaced characters anyways. Both variants can have subwindows, boxes, colors etc., the ability to display icons or finer-grained widgets doesn't really seem like a distinguishing factor to me. Heck, once you add mouse addressing there's even fewer distinguishing marks, so I don't think someone can feel elitist just because he's pressing F3 in his Norton Commander clone instead of dragging and dropping files in Finder/Explorer.
A more "programmatic" mode of interaction seems like a better dividing line, i.e. regular command line tools or line editors.
I always thought the early Bell Labs UI experiments and Wirth in general was a more interesting alternative to VT52 smart terminal UIs.
