agnl --
I'm new too. 3 weeks into vaping and loving it. Haven't had an analog since Nov. 5. Haven't wanted one (and I've still got 3 cartons in the cupboard).
A friend showed me, and let me puff on, his V4L. I liked that it looked like a cigarette. I liked the portable charging case. I liked the taste and the vapor and the throat hit. And the nicotine! He said this was his third product to try, and he preferred it by far to the others.
So I came home and researched e-cigs online and especially here on ECF. Decided on the Ultimate Ultimatum kit from Vapor 4 Life. I can't say enough (though of course I'm getting interested in perhaps, maybe, someday, sometime, possibly trying some other models people here seem to really enjoy).
I also like the two-part V4L system with the cartomizer. Easy to refill. I don't know how long they last because I haven't worn one out yet, but certainly 3-5 refills sounds okay. One video demo of refilling mentions the cart's been refilled 13-14 times. So who knows?
Based on my three weeks, the overall cost per year for vaping instead of smoking (and I was a heavy smoker) is almost one-tenth! In other words, I'm saving about $1,500 a year vaping -- and enjoying it, and the flavors, FAR more than smoking.
Good luck with whatever product(s) you decide on. Vaping rules.