Meh, refilled my zippo a couple of days ago just to have fun with it. Wanted to light it again, but the fluid already evaporated. I've been having the same discussion in my head every single time this happens to me. "Why does everybody love these things when they run out so quickly?"
Using them more would probably be an added value, I guess. But since I'm not a smoker... I might just have to conclude that zippo's or any type of lighter is just not for me.
But then again, zippos ARE fun to play with. Regular lighters are no fun at all. But as a non-smoker in a "being somewhat prepared for when you might someday need to use it for a fire" it's actually quite useless apart from the fun factor. Anyway, just my opinion and just venting