I've tried and tried to convince several people to switch and they are just hell bent on smoking cigarettes.  Why anyone wants to pay a billion dollar company $5 a day to kill themselves I have no idea.  As an analog smoker for 25 years and now having been tobacco free for over 70 days I just don't understand it...well actually I do understand it but I don't understand why people aren't interested in a better alternative.  I tried Chan*ix ($400 ****ing dollars with insurance!) and that stuff made me crazy.  Tried gums and all that crap.  None of it worked.  I used to be a Copenhagen dipper for a while so I tried switching to that exclusively for a while...still wanted to smoke.  Hell I'd smoke while I was dipping!   
 
I just like to smoke but I'm freakin happy as hell that I can say I'm tobacco free now.  I could care less about any risks of nicotine really...I think if you sum up every harmful thing you are exposed to daily that nicotine is just a drop in the bucket.  Just think about all the chemicals you expose yourself to everyday...is the long term exposure really safe?  Deodorant, hair sprays, toothpastes, soaps, lotions, food preservatives/additives, cologne/perfume, residual aerosol from household cleaners, clothes soap/softeners, etc.  What's in your water folks? 
 
Rob (listening to NIN Portland 2008 Live and kicking back tonight)