There are just a few rules for buying vintage dolls. First, vintage dolls are worth more if they are in good condition or in an unopened box. Second, rarer dolls are worth more because there are fewer of them. Also, vintage dolls are worth more if they are made by a famous maker, or at least the maker who was licensed to make that doll at that time. The last and most important rule for buying vintage dolls is to buy something you truly love.