People say it's hard to quit. It's actually not. I quit after smoking for 10 years. It's easy as fuck because all I needed to do was excercise the basic willpower that I have as a human, the same willpower that I use to stop myself over-eating like a hamplanet. If you understand that you need to quit, then simply quit. It's easy, even cold turkey without patches and shit, it frees up a tonne of money and time and is awesome. Why wouldn't you quit?