Nickelodeon has finally delivered the Avatar: The Last Airbender complete series in a collectible Blu-ray set. According to Comicbook.com, Amazon has now dropped the price of this collection to an all-time low. The Complete series is available to order on Amazon for only $29.59 which is 34% off of the original price. Avatar: The Last Airbender aired on Nickelodeon for three seasons from 2005 to 2008.