I see a lot of people complaining about how cigarettes are disgusting, smell bad, turn your lungs black, blah blah. Then they turn right around and suggest smoking marijuana. It has the same effect on your appearance/lungs/spit as cigarettes. The only negative stigma associated with cigarettes that I understand so far according to this topic is that big mean corporations want to kill their clientele!
Where I get my point of view: spent a good deal of time experimenting with recreational marijuana use in college. Enjoyed it. Stopped doing it my junior year and never did it again. Was more detrimental to my health and lifestyle than any other form of smoking.
Have smoked cigarettes on occasion when drunk. No residual side-effects (not addicted). No desire to buy or consume otherwise.
Currently smoke cigars on the weekends and have done so for the past five years. Dentist regularly reports above average gum and tooth health. In good cardiovascular condition.
What I am trying to get at it is do not be so quick to dismiss smoking or smokers based on what you have heard from other people. Until you actually give it a try, you have no ground to stand on.