I'm planning on getting her that if it seems like a lasting interest and not just a passing one :)
Just be wary if she suddenly loses interest. It has more to do with teasing by peers and implicit models enforced by adults than her interests. If she does lose interest then just accept it and hug her while telling her that you'll love her no matter what. Also, spend an equal amount of time with her on stuff that she likes. No matter how far out of your domain it is. Kids really need role models like you and need to spend time with adults like you.
It's something so obvious but it makes a world of difference to a child.
Good luck.
P.S. - I would love to continue this conversation through email if you want. (yesthisisananonymousid gmail)