Oh ok, yes, for those re wicking and dry burning coils, it's useful.
I only use pre made coils to this point, I basically toss 2 coils a month when averaged out. That's maximum $5 a month, plus juice, I only go through 3ml a day, so, a bottle of juice a week. I spend overall 70 a month max plus impulse hardware buys, vs 150 a WEEK on analogs. So tossing a coil to me is still nothing.
I'm going to get into the RBA game but very lightly, i will try a couple plus ohm MTL builds with my subtank, and I know i'll be crap at it lol.
Pre built coils though lasting 8 months? You'd HAVE to be re-wicking and dry burning them yes?
Things I would rather spend the 5$ a month and save the time. To each their own of course, and I actually wish I was more like may of the rebuilders here, but i'm just not.