Boopy Pillow Question

My good friend gave me a boppy pillow . I don't like the cover that's on it , so I was going to order a new one and just wash the pillow itself . Should I just go ahead and get a whole new pillow ? I don't know how long she's had that one for , but she's very clean and everything . I'm just not sure . She also gave me some other things and I didn't want to say no, but I'm just kind of wanting all New everything .