My problem is, when I see a guy like this Misha Kazt, that I get so fascinated (or appauled) of what he is doing, and how he is doing it, that I forget to listen to the music, and my concert is more or less ruined as a musical experience. No, guys like this (and he is not alone, some other guys were already mentioned) should not be allowed to be seen by an audience or on TV/DVD, I think their best media are the CD and the radio (LOL). Maybe also the off-stage orchestra.
Roffe