I would approximate the cabinet could be made an inch, or so, narrower with a notched tweeter faceplate. Having the centre-to-centre distance as small as poss between the mid and tweet should also improve the SQ from what I've read(may not be audible, but at least it reduces the height if nothing else). Reducing the height, if possible, would make the speaker desirable to more buyers. I don't agree with statements about just getting one of the other centres as I think they are different animals(excluding the 180) and I don't really think a buyer would "cross shop" between the smaller centres and either the 160 or 180 once they have done their research.

Half of communication is listening. You can't listen with your mouth.