Selling the doll without the book would defeat the reason for AG dolls. It would reduce them to the " just another pretty face" doll . AG should give the option of a coupon for a book at the cost of the "meet" book with doll purchase .
This coupon could be redeemed wherever AG books are sold. This would eliminate the problem of duplicates and still promote the books . AG would make money on this because some people do forget to redeem coupons.