To cults, and to vaping-things that cost more than the grocery budget for an entire pay period.  

  That's my yardstick -- does it cost more than we can eat in 2.2 wks?  If so... NEXT!  
In fact, I think I'd probably say no to anything that cost more than I used to SMOKE in 2.2 wks... $88.  With this Sigelei, it does end up being more than that if I add two of each of the 3 sizes of batteries and a 4-bay charger, but if I got 1 18650, 1 18350, and a 2-bay charger, plus the mod, it would come in just a bit less than that $88 yardstick; in other words, I could make it work, for less than $88.  So that's acceptable, even though I know I'll end up with a 4 bay charger and a lot more batteries.
Any idea about replacement top rings?  I've seen some for use with the v5, I *think*, but would they work for the v3?
Andria