I'm an energy drink addict. I get hassled by the coffee drinkers at work, when they see me plop down my big can of Monster, NOS, or Starbucks energy drink. Never got into coffee other than the coffee flavored energy drinks. If I can't get to a store, I find coffee is a good caffiene vehicle for those times when I get a headache from the lack of vitamin C, (caffiene). In fact, I think it has more caffiene then most energy drinks.