Hi, I've currently got an old 3DS and i am thinking of selling/trading it in for either a New3ds or the XL version. Just wondering since they did the new account system etc for Nintendo stuff now do i still need to keep my old 3DS to transfer my Nintendo Network ID thingy to the new 3DS so i can re-download the games i bought on my old one on the new on? Not sure how it all works :s Thanks in advance!