>>54223332005 was no doubt a terrible, terrible year with a couple gleaming examples of quality shining through (like Keetongu and the Toa Hagah), but I'd pin 2008 to be the fall of Bionicle G1. The brittle joints, the really half assed nostalgia pandering, the introduction of the fucking av matoran build, ect.
2003 > 2002 > 2007 > 2006 > 2001 > 2004 > 2009 > 2008 > 2005 > 2010