There are a few advantages (see visualization section here pls http://en.m.wikipedia.org/wiki/Box_plot http://en.m.wikipedia.org/wiki/Box_plot ) but my main con

There are a few advantages (see visualization section here pls http://en.m.wikipedia.org/wiki/Box_plot http://en.m.wikipedia.org/wiki/Box_plot ) but my main concern is that the problem is not with the diagram, it's with idea that it's somehow faulty. Sometimes you may want to highlight some core representation of data without the distraction of outliers (yes that does mean some people will use it for deliberate misrepresentation). But in this regard it's useful, as is on bar graphs not starting the vertical at 0 (because you want to illustrate relate difference not absolute amounts).