It really seems that vaping is not just a short term fad. Smoking e-cigarettes has picked up dramatically in the last ten years. According to Data by Wells Fargo and Agora Financial this year's sales could reach $10 billion worldwide, a far cry from the mere $20 million in 2008.
Vaping has Picked up Worldwide
E-Cigarettes

Description
This chart shows sales electronic cigarettes dollar sales worldwide from 2008 to 2017 (in million U.S. dollars)




















