Wild Wastland is pretty cool part of the game, but I think it's something that should be there anyway w/o taking a trait slot. And some of the WW occurrences are barely even noticeable. I used it on an earlier playthrough, but after seeing them all once I don't think it's worth taking again. What do you guys think? Take it every time? or never take it?

I think it should be included in the game without being a trait it's not frequent enough to be fun or useful

Fortunately if you're on the PC Master Race, there is a modder who thought the same thing. Not my work, here's a link to Toffer90's http://newvegas.nexusmods.com/mods/46472 mod.