Help with which ones cases are better?
The grey or the black hi-sec case?
I've been told black but the grey one cost more and some people say black, I really don't know (as you can tell, I'm a newbie at CA ^^)!
Grey=They cost GP and are cheaper than NX, but the chance of you getting a 7, 30, 60, 90, and Perm Weapon, is rare. You'll mostly get a 1 day weapon.
Black=They cost NX, but over all you get an increase chance of getting good items and longer weapons time.