There's a reason that the 2005 Constantine film starring Keanu Reeves made sure to retain the title character's smoking habit, despite jettisoning many other recognizable aspects of his look and background
In fact most coffeeshops in Amsterdam sell cannabis that is a hybrid of Indica, Sativa and Ruderalis

We work to improve health equity by: educating about tobacco industry targeting of communities, past and current commercial tobacco inequities, and resulting health disparities, examining and focusing on improving equity in the programs and policies we support, supporting the right of local communities to protect themselves from tobacco industry tactics, including local authority for stronger regulations to limit commercial tobacco sales and marketing, recognizing that people addicted to nicotine products are often coping with greater stressors and inequities than the general population and opposing programs or policies that blame or stigmatize them, supporting investments in culturally responsive strategies that are developed by each community to support their well-being, and identifying and trying to fill data gaps to understand impacts of commercial tobacco on specific communities and improving research infrastructure to be more representative and inclusive of all Washington communities

There is also a risk of poor transparency
So, in essence, vapes can potentially offer a more controlled dose of nicotine compared to traditional cigarettes
Altria has dumped the hundreds of extra chemicals in their e-cigarettes that they had in their Marlboro