I have noticed a strikingly similarity between Panini Cards and Star Wars. Both take a concept and slightly vary it an infinite amount of times. For example, in 2010 Panini Threads football, the base cards had 6 (slighty) different parallel versions of itself. The insert Grid Iron Kings cards had 9 (slighty) different versions of itself. In some cases, the cards came in different colors, or with added materials or signatures or both.
In 1977, Star Wars came to the movie screens. I believe sometime in the late 1980s, it was remastered for better quality for the VHS tapes. In 1997, it was rereleased with additional footage. In 2004, there became a DVD version of the film. Sometime in the very near future in a galaxy close close by there will be a 3-D version of the film. There may have been other addtions (or parallel versions) that I can remember or don't know about.
But like Panini, George Lucas took his feature film and recolorized (different colors) it, added scenes (materials or signatures), 3-D it (materials and signatures) to give the public what it wants (or to milk a cow as much as he can or in Panini case, sell as many versions of a card that you can).