For some of us it's a hobby. I smoked for 40 years and never thought I would quit, so when I reach a milestone I want to buy something memorable - preferable expensive - to reward myself. Every 6 months I buy something different, which is how I've ended up with ProVaris, Reos, Woodvils and authentic mechanicals. Each one has it's own uses and I enjoy them all. This amount of gear is completely unnecessary, but I prefer it to collecting shoes or Coach bags. And it's all just for me, I don't know anyone outside of forums who would have a clue what I'm vaping. When I'm out and about, people I meet are far more interested in the Serenity Gear sleeves I use than what's inside of them. I have only seen one other ProVari in the wild and that was in a vape shop.
Every six months, eh? So counting up all those "ProVaris, Reos, Woodvils and authentic mechanicals," you've been quit for about 20 years? Really want a Serenity Gear sleeve. Those are just plain nice.
Rewarding yourself is awesome. Got my first ProVari for my one year vaperversary. If I quit vaping, not likely while I'm alive, I'll always keep it. For that matter, I still have the present my husband gave me for not smoking for a month. Never thought I could do it.