I could buy a $100au mod each week and it would still be cheaper than my cigarette habit was.
In three years Ive only had one mod go down, a smok. I do rotate 4 mods, a gv Solo, pico 75, Armour Pro and a ambition mods luxom.
I have a few mechs stashed away.
I was a light smoker but if I was still smoking I would be paying about $5600pa. Times that by 3yrs. In that 3yrs Ive spent about $2500 on vaping, part of that cost went to buying a life time supply of 100mg nicotine and the rest went to buying mods and atties. I only have to buy batteries, vg and cotton going forward, about $20-$50pa.
In countries where tobacco is cheap the cost might not be an issue and a whole different set of results might occur but here in Australia what Ive spent on 30yrs of vape gear would keep me in tobacco for less than 6months.