Hey guys, I got like 2.5K NX credit left in my account, and I am wondering on which to spend it on. I would like to renew my M417 SB for another day (I got like 1 day left), but would getting 2 Black HiSec Keys be more worth it? What about the MYST-N case? Is that better?

Just trying to get some honest opinions on what to get.