Dust is absolutely right, why get it, if you don't need it?
I used to have my NR for basic (NR was used as the state exam for a VERY short while), but I let it lapse because I had no intention of moving to be able to work as a basic elsewhere.
When I get my paramedic, I do intend to eventually get my NR as I do want to move out of NJ, but I'm not in a rush for it, and few states do not recognize NR. For some, it may just be easier to go through the reciprocity procedures with the state instead of taking the NR test.