User blog comment:BlueChoco/New Content Thoughts?/@comment-1889067-20110716023642/@comment-1906486-20110716092022

I'd say about 50% (guessing) of the time it's a 1 day weapon. Then break down between the various days + slim chance of perm. I've gotten more useless 1 day weapons than anything from em.

Overall not worth it IMO, until they take out the 1 day option period from the cases.