I smoked a pack a day for about 15 years. I can pretty honestly say that quitting smoking may have been the most difficult thing I have ever done in my life. I count myself lucky that I just passed the 10 year anniversary of my quitting. I watched 3 close people in my life die as a direct result of smoking, and I saw it in detail; make no mistake about it, it is a horrible way to die. It also saddens me that several close people in my life are still pack-a-day smokers.
I gotta agree with Shakedown. If you are smoking, do whatever it takes to quit. More importantly, if you aren't a smoker, don't EVER start. The BEST thing that any smoker has to look forward to in their future, is the difficult road to quitting that Shakedown and I have both been through. The worst thing that any smoker could see in their future, is a slow and horrible death as you slowly suffocate.