In 2005 LEGO released 4 Quatro sets. The largest Quatro set from 2005 was
5349 Quatro 100 with a piece count of 100 and a retail price of $24.99. The current estimated value of all these Quatro sets from this year is about $376.22 which represents a 427.7% growth.
LEGO QUATRO was a theme that used specialized QUATRO blocks which were larger than DUPLO bricks. The theme was released in 2004 and was designed for pre-school children and babies ages 1 to 3 and was discontinued in 2006. The name QUATRO comes from the fact that the bricks were quadruple the dimensions of the traditional LEGO System bricks. The logo of QUATRO is an elephant which is the same as the old logo of Primo.
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.