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Your Kids' Favorite Toys Are Worth a Ton Now

6. Barbie
While my old barbies are piled naked in a bin somewhere in my parent's attic, these collector "World" Barbies have been treated liked the queens they are. And they can all be yours for $1,200. Now, if it were a single first edition Barbie—you know the classic black-and-white striped swimsuit—that could reach the $20,000 range.