I took a moment to think about mine. I already had at least one old liter from 2014 that went unfrozen for a year. Maybe more. Then I had one liter from River that was oxidized. So once I started reasoning it out that at least two liters were either old or oxidized, I felt the need to get more.
Now those liters vape fine...but for long term I want to be 100% sure I’m covered. I could easily drop to 1 mg if needed and I’m more than covered. But on the other hand, there may come a time when I need something stronger. I think I have 9.5 liters which at my current use will probably last me until I’m well over 100.

But what if I gain a DIL one day who needs to quit smoking? Or husband? Or friend?
Which brings up another good point I’ve been thinking about. I may become stingy with my vape gear ya know? I can’t just be giving it all away now since access may be limited. Something to think about. Sad really.