I took this road about 5 years ago.
OP is right. Protect yourselves.
I've spent well over $1,000 on vapes, RDAs, and tanks. Not even talking about coils, accessories and liquid. Those would take me to about a $2,500 total. I think.
Never understood the appeal of vaping; what exactly is desirable about it, let alone obsessing over?
One of my buddies uses it as a placebo for smoking after he quit, but I just can't see why anyone would ever start.
I do it because it lowers my stress levels from work. It was either this, or smoke cigarettes.