Barbie Graduation Day Cap & Gown Doll, Brunette Hair

I bought this doll because I fell in love with her beautiful face and dark brown hair. That being said, I didn't realize she came on the model muse body. I'm not a fan of that body type, but it's my fault for not doing enough research, so I'm not upset by it. The part where I'm confused is about her being a collector doll, but at the same time not. She comes in a nice quality box, has a model muse body, comes with a stand, and a supposed C.O.A. You would assume she is a collector doll, but she cost under $20, and her Certificate of Authenticity isn't numbered and is just a piece of thin paper with a generic statement. I guess the only other bonus would be that Mattel surprised me buy making the graduation robe and her dress two separate pieces. You just have to snip the tiny thread holding them together.