While caffeine is addictive, it is nowhere near in the same league as the addictiveness of nicotine. Nicotine is one of the most addictive drugs on the planet. Man, I've done about every recreational drug there is and nicotine was by far, the hardest to put down. The biggest symptom of caffeine withdrawal is headaches, and while they can be pretty intense, the desire to keep consuming caffeine is nowhere near as strong as the desire to keep ingesting nicotine. Only realistic alternative is Snus? What about exercise? What about the alternative of simply not taking in any nicotine, regardless if it's from smoke or e-cigs or Snus or whatever?