I've never tried to even consider totaling up what I've spent. I just did a quick inventory of what's on my desk, though. -
My desk has a couple of hundred bucks worth of batteries, about $250 worth of juice, about $250 worth of PVs, and about $160 worth of cartos and attys. There's maybe another $60 or $80 worth of incidentals like drip tips, syringes, mixing bottles etc. I don't think anything on my desk but maybe a bottle or two of juice is older than mid-January of this year, and I have really no guess as to how much juice I've used nor how many cartos I've tossed or attys I've popped since then. I could easily call it pretty close to twelve hundred dollars spent in the last five months, I think.
And I have about $100 worth of stuff coming in the mail tomorrow plus I'm planning on re-stocking CE2s for my MAP tanks this week and will probably also stock a few boxes of dual coils since I'm buying cartos anyway, so that'll probably be another hundred bucks. ... and it looks like back woods brew is open again, so there goes another sixty five dollars... and madvapes might be listing a PV I want to own this week (hopefully that one will be an inexpensive item though)
So, what it comes down to is that I probably spend about the same amount of money I did on tobacco. Six bucks a day for a pack of smokes and a couple hundred or so two to four times a year for a nice box of cigars plus the occasional $75 or more for a single cigar.
The bright side is that if for some reason I had to stop spending money, I could probably vape four or so months on the supplies I have on hand. And, if I dug everything out of the junk drawer, I could probably go three months after that using juice I don't really care for and attys that are sub-par for one reason or another. Heck, if the power grid failed, I could go three weeks without being desperate to charge batteries (granted, there would be a whole lot of 3.7v days and far fewer 5.0v and 6.0v days, but that just means more dripping and MAP tank use and less dual coil enjoyment)