Most of the money I spent on vape stuff in the last 4 years has been stockpiling in case of government interference. The total for that is probably under $1,000 total for a 20 year supply of mods, atomizers and nic. My DIY is 8 cents a day. Builds are too low cost to measure, pennies per week. I assume two years continuous service from a Pico mod and rda so that averages $25-30 a year for those. My vape isn't cheap, it's free.
If I was offered a magic pill that garranteed no health problems by smoking I would say, no thanks, I don't smoke, I vape. Then, if I was offered the magic pill and a free life time supply of my cigarette brand I would say, no thanks, my vape is free for practical purposes and it's a supperior experience. Cigarettes are obsolete.