Can't say health issues/concerns was the only reason. I didn't really experience many negative side effects from smoking, but keep in mind I only smoked for 10 years and was 1-1 and a half pack a day smoker. I felt fine and worked and continue to work in manual labor. I took up vaping because my friend introduced me into it and I liekd the idea. Cheaper, healthier, and indoor use at public places. All sounded win win. I did the vaping for a month or so and then went back to smoking. Met my friend again after some time apart recently and I saw how amazing the vaping world became, with all the new technology and custom stuff out there these days. So far I'm way past the one month mark and can;t ever see myself smoking again. I don't even crave real tobacco anymore.
What I have now works for me. It's reliable, cheaper, healthier and much more enjoyable with all the great flavors out there. I can basically recreate any smoking experience I want in the form of vapor. It's all a win win for me. For me the selling point was affordability, and customization. I enjoy the health benefit too but that wasn't what attracted me the most. I love red meat, big block engines, rock and roll, beer, yea, you get the point. Ha! Cheers.