The difference in costs between cigarettes and e-cigarettes may cause a smoker to shift towards e-cigarettes. Cigarettes are expensive, while vape products are cheap. For smoking addicts, it is difficult to keep smoking traditional cigarettes when they could almost get the same effect from e-cigarettes. Although the high price may cause some smokers to consider not smoking altogether, the vape industry's rise makes it convenient for smokers to access an alternative for cheaper. The wide selection of flavors and nicotine dosage offers a range and an enjoyable smoking experience. Vaping doesn't also leave a smell on the body and clothes as traditional cigarettes do. Some smokers often feel guilty about their addiction, and e-cigarettes offer a safe alternative. 
Despite vape products having a negative impact, the advantages they have compared to cigarettes largely determine why smokers would switch to it. After all, smoking tobacco cigarettes also causes cancer and other harms to the body.