My comment concerning this topic at Althouse.
A few disadvantages to the buzz / smoothie cut:
1) They will expose the huge cavernous dents in your head.
2) If you play heavy metal guitar, you no longer have the long hair to swirl around whilst on stage. And the lack of hair draws even more attention to the hideous spandex!
3) Don't do a fresh smoothie in the middle of summer and then go jet skiing all day. Trust me. It's painful!!!