Arch Tops, Hollow Bodies and Acoustics are in a class by themselves, in my opinion. With these designs, the fabrication techniques and materials has been shown to greatly impact the quality of the instrument's sound. While some may be tempted to invert my opinion into an insult aimed at solid bodied electrics, it is not denigration to say the SBE(s) are simply easier to build. Based on that conjecture, I have always theorized that SBE(s) top out in price at a lower level than the aforementioned guitar designs. When I say 'top out' I mean that guitars above that price tend to add nothing but bling to the result. Exceptions appear to be centered on rare designs, such as my PRS Arch Top. Although it was only about $2K when I bought it new in '98, I have seen it sell for much more lately. Many PRS Private Stock guitars offer switching that is unavailable in the core line. These functional enhancements are tailored to very specific tastes and hence, the guitars garner 'tween $8k and $12K each. Most assume that PRS PS guitars are simply overBling'ed offerings, but I don't think that is true. Boutique acoustics seem to have a very high top out price. I've sampled some from the upper shelf and I can honestly say that there does not seem to be an upper bound to the quality of sound.