User blog comment:NIGHTkilla/GP to NX conversion/@comment-4537189-20120413102341

10,000 NX for 100,000GP is a little too much.. There are times when people wanted me to gift them NX items in exchange for GP. Usually my NX/GP currency is 1,000 NX = 3,000GP.

And you cannot combine NX Prepaid and NX Credit together.