My break even point is a little difficult to reach. I was smoking 'stuff your own' cigarettes at about $1 a pack. I record all my expenses in Quicken, so I had a good record of what I was spending on smoking, including lighters, etc.
In a year's period before taking up vaping, I spent ~$863 on cigarettes and such. I was smoking about 2 1/4 PAD of strong 'pipe tobacco-like' material stuffed into filtered tubes.
That shakes out to $16.60 per week. I now enter a weekly amount in a register dedicated to vaping. As well, I enter all my vaping expenses.
I'm just over 2 years into this venture and I did 'stop on a dime.' I mostly DIY, but do indulge in some commercial ejuices. I also have a fair stock of mixing bases in the refrigerator and freezer.
At present, I am ~$369 away from break even. I'm projecting around Labor Day as I know there will be a few expendatures before break even.
There are a few poor choices, such as stocking up on basic cartomizers before moving on to clearomizers and items like that. I admire those who have stuck with cig-a-likes and have broken even from the get-go.
As well, I have recouped small amounts by selling a few juices and flavorings in the classifieds. Those funds are reflected in the total deficit of $369.
I'm now beginning to reach a stable point and making fewer speculative purchases. I'm closer to a routine few flaovors to rotate among.
None of the above qualifications are meant to suggest that something exceptional might tempt me to delay the break even point.