Sorry Buck, you've still entirely missed my point. I don't care that SD, or Aerosmith, or any big name and aging artist uses them. I've seen every SD tour since '96 and loved them all, not caring a bit about their charts/sheets.
I'm talking about non-famous, weekend warrior bar bands. Those with a front person who has his/her head in a book will almost never compare favorably to one of relatively similar talent that doesn't. It's just that simple.