>I sat down and crunched some numbers on wand-maxed-out-edness.
> Barrier wands are the most tapped out, and roughly 85% of
>barrier locations currently have their wand in.

I mean we are not in a court and these numbers don't reflect the whole situation because the most accessible wands are often maxed. If many badass high level mobs have them in their inventory or somewhere in the Hell twenty more barrier wands lie it doesn't really help. Generally, a player is not going to gather a group to obtain them.
I know many wand locations but when I check them with every new character, much less of them have wands in. It may be argued that is how it is supposed to be, but my point is that a "newbie" explorer will not find those wands during exploration.

PS. Actually, the original idea about zero charges isn't that bad.