Cigarettes do not alter the mind state very much at all. There's no reward really. The only 'reward' comes when you are away from them and need one to feel normal again.
A nonsmoker that smokes feels virtually nothing.
The same can't be said of illegal drugs. Cigs are addictive purely through social pressure. They are very easy to drop and forget, becaue the mind altering properties are near zero.
Illegal drugs such as pot are far harder to get off of. Think about it.. You gave up cigs, yet you still do pot. And you will KEEP doing pot too. No matter what.
I ask you, which are you more addicted to? Which was easier to really stop?
No, if I had a cigarette right now, I'd probably feel a mild buzz...but I probably wouldn't like it, & I'd cough my lungs out. Maybe more of a dizzy feeling than a buzz, but it's been such a long time that I don't wanna find out again.