Could please someone generalize the categories of Tokai LS model guitars soundwise? I have an LS75 (92 in 2010 catalogue), and I wonder what is the real difference between this one and, let's say, 120, 160, 240 and so on from the same 2010 catalogue? I mean, if at some point I wanted an upgrade, I'd like to know which price range gives something to the sound and which is only a cosmetic upgrade or what. Maybe different type of mahogany wood used on more expensive models, different hardware and so on?