still don't see anything good about it
Some people just love to smoke. People have smoked since 5000 BC, for various purposes, but the primary one is enjoyment.
Yeah, I think I want to try to get my fiance to switch to e-cigs. I don't want to be a bitch who tells him not to smoke, but secondhand smoke really bothers my lungs. One of the reasons I've never tried it myself.
Don't just run into a gas-station and get him one of those cheap disposable ones, though. He will be put off by them and probably ditch the entire concept forever. My advice is to invest in a bit pricier, high quality device immediately, cause what you want is for him to have a "whoa, this is fucking great!" experience the first time he tries it. Will increase his chances of never going back to cigarettes a lot.
