The LEGO DUPLO theme was introduced as far back as 1969 and is designed for children ages 1 to 5. It features DUPLO figures which are much larger than minifigures and DUPLO blocks which are about twice the length, width, and height of a standard System brick. Like LEGO System, DUPLO also has subthemes that are often junior versions of System themes, like Pirates and Castle and licensed themes like Disney and Super Heros.
Building Sets consists of 183 sets that ran from 1972 to 2018. As of today,
3191 Anniversary Bucket is the most valuable Building Sets set with an estimated new/factory sealed value of $323.
Summary
Duplo Building Sets Duplo Brick Box set 5416 was released on October 24, 2007, retailing for $15, it has since been retired. New, unopened sets are valued at $20, used ones can be found for $11.
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