
The Ultimate Collector's Series, or UCS, is a LEGO subtheme of Star Wars introduced in 2000 and was meant to be more detailed and aimed at older builders. These Ultimate Collector's Series sets tend to be larger, and more expensive than typical sets.
2001 LEGO Sets
In 2001, LEGO expanded its collector and investment appeal, introducing several highly collectible themes that continue to influence LEGO’s success today. Among the most significant launches was LEGO BIONICLE, which debuted worldwide after its initial European release in 2000. BIONICLE became one of LEGO’s most successful original themes, blending storytelling, action figures, and mechanical builds, setting the stage for LEGO’s expansion into narrative-driven franchises.