Does it strike anyone else as odd that we (Audiophiles) expend great effort in selecting isolation equipment (brass cones vs aluminum cones, tennis balls vs. ball bearings, etc) to isolate a component such as a solid state amp or preamp, or CD player (or even a cable) which you can tap on as hard as you want without ever getting the slightest piff of sound through the speakers, but are willing to sit a pair of monoblocks with exposed tubes, which are commonly microphonic, right next to the speakers?