$66.99 Amazon.com : Starbucks, Doubleshot Espresso, Salted Caramel, 6.5 fl oz. cans (12 Pack) : Grocery 
How did I not realize this before? You can buy your favorite syrups from their online store 
Amazon.com : Starbucks Flavored Syrup (1-L.) (Caramel) : Grocery & Gourmet Food
