It's called GAS--Guitar Acquisition Syndrome. Here in the vape world it could stand for Gear Acquisition Syndrome. But calling it shinyitis works just as well. You could apply that term to the music world, too. Guitarists and keyboard players are the most likely victims, but even sax players have their eye on that nice $10,000 Selmer.
Very shiny.
Right you are about hand to mouth.
During my first 2-3 years vaping, I vaped no nic. What attracted me to it was the fact that most of the other elements of smoking are still there. Hand to mouth, filling your lungs with something other than air, exhaling a cloud. It worked for almost three years, until a crisis, combined with having a spouse who smokes, weakened me to the point of giving in to the tobacco demons.
I always vaped low power, with lots of VG, because to me, that pretty well replicates cigarette smoking. One reason, though, that I like vaping is that vapor can be much cooler than cigarette smoke, and even soothing, especially with 100% VG. Adding in 25 mg/ml freebase made it much less soothing. Switching to salt nicotine has helped a lot.
So when I vaped no nic, I would basically pretend to smoke a cigarette. Mostly MTL, with the occasional DTL hit thrown in. That's how I smoke tobacco. That's how I was vaping until recently. Trying to keep up my nicotine levels, I instinctively switched to vaping the same way I have been known to smoke non-tobacco cigarettes. All DTL, exhale through nose and mouth together. Sometimes I forget what I'm doing and I hold the vape hit in.
This definitely increases nicotine uptake.
Anyway, the way I deal with getting nic sick is to switch back to hitting it like a cigarette. I do keep a couple of tanks around that are filled with 18%.