In an interview with Gamasutra, creative director forLego Universe Ryan Seabury revealed that due to the Lego Group's "uncompromising" standards for the appearance of any Lego product, there is more to a Lego brick than an entire World of Warcraft character. The building blocks in the Lego MMO that players can use to create anything (but ideally not phalli) might look simple, but they're not."
For the full article, see:
http://www.escapistmagazine.com/news/view/103848-Lego-Bricks-Require-More-Polygons-Than-World-of-Warcraft-Avatars