I use several different atomizers each day. One for each flavor I'm using. Maybe they'll all crap out at once, don't know. Some are going on 6mnths. I've never thought much about it.
So far I've only had 2 atomizers fail and each of those were in the first day of use. One with only about 1hr use on it. Both came together for the same
device, so I'm just chalking it up to a bad batch.
Suppliers warranties start from the date you receive. If I had tried everything, made sure it worked, stuck it in a drawer for a month and then when I needed it had them all going dead within an hour or 2 with no chance at replacements....well that would tick me off far more than having at least gotten my 2wks or whatever use out of it.
I've currently got 7 atomizers I'm using between 3 models. If I scrounge around for misplaced
devices I could probably turn up a few more. More stuff on the way, but it will all go into active rotation. I suppose everything could go belly up at once, but I think it's unlikely between everything that I wouldn't be able to have at least 1 working to get me by until I got replacements for something.
I say better off to keep at least 2 models that lots of suppliers carry and you'll be able to find someone with spares for something. And convert everyone you know so you can bum something for a few days in an extreme massive failure situation.