In 2005 LEGO released 5 Belville sets. The largest Belville set from 2005 was
5960 The Mermaid Castle with a piece count of 237 and a retail price of $69.99. The current estimated value of all these Belville sets from this year is about $563.07 which represents a 414.2% growth.
The Belville theme which was introduced in 1994 and later discontinued in 2009 was created to appeal primarily to girls. While the sets revolved around the concept of the LEGO system it featured doll-like figures known as Belville Figures instead of regular LEGO minifigures. The Belville Figures featured multiple joints to make play more like normal doll play and were larger than minifigures. The Belville theme was the predecessor to LEGO Friends.
2005 LEGO Sets
2005 shaped up to be a significant year for LEGO collections. Starting with the fact that LEGO System celebrated its 50th anniversary, we also saw a LEGO set designers change their techniques in set designing. 2006 marked the year that the skin color of the Star Wars minifigures changed from yellow to light nougat which also continued to various other future licensed themes. While this was a simple change, the value of sets saw high growth. 2006 introduced the LEGO City theme which replaced the Town theme, as well as Tiny Turbos under the Racers theme. However, in 2006 LEGO did discontinue Alpha Team and Baby.