@MrsPramm - There have been mixed reports about how safe those electronic cigarettes actually are. Some testing shows them to be still quite bad for your lungs and I know they've been banned in a few places.
I used to smoke, but I honestly don't miss the nicotine at all. I never really liked the rush from the nicotine, as it used to make me feel dizzy. I know I was physically addicted and would crave cigarettes because of that, but now that the addiction is gone, what I miss is the habit. Having something to break up the day and a way of meeting people. Having something to do with your hands. That's the kind of thing I miss.