Socketman: I sold used and new cars when in graduate school and I'd say your analogy is accurate. Also I do want to reduce the footprint but not for the cost I've calculated.
As an alternative I researched HSU subs and am now looking at SVS. The VTF-3 MK4 caught my eye. For $699 + shipping etc. this piece of equipment goes down to 16HZ and has impressive reviews. Pairing this sub with a pair of M22's would cost much less. I am unsure if I could trade up to M22's and stands for the one pair of M80's though. I still think my M80's are wonderful so I am still unsure what to do other than continue to research at this point.
