Between the Mrs. and I, somewhere in the neighborhood of $4,000.00 in a year of vaping. Saving money was never a priority in quitting cigarettes.
Sounds like a lot, but we now have a half dozen Caravela's (topped with Vela tanks, Ithaka's, Prometey), a Provari, 2 Mark Bugs Wizards, some beater mods (K100's and such), a drawer full of nice drip tips, HH357's, etc., 60 bottles of excellent juice and 4 healthier lungs.
We pif'ed Volts, Vamos, Vivi's and all the other beginner hardware to our two children who smoked, and they no longer smoke. That's already worth MUCH more than the 4K.
What we DIDN'T spend was about $3,800 between two of us on cigarettes. I'm set for hardware now, so year 2 will be WAY less expensive. Our monthly tab for juice, wick & wire is laughable at about $45. I'm totally comfortable with it.