Well ever since I got a PS4, I've been using my brother's PS Plus (I know. I'm cheap.) But now after over a year he is saying that he wants me to get my own PS Plus because if my PS4 is Primary he can't play any of the games he has bought offline. Anyways I'm worried that if I get my own PS Plus I'll have to buy all expansions all over again. Anybody know how it works or if I'll have to buy it all over again? Thanks a lot!