GameStop announces they will be the exclusive retailer of codes for digital distribution of all of Stardock's upcoming games, which will probably be a convenience for some folks for some reason. Here's the deal:

Games developer Stardock Entertainment’s slate of up-coming PC game titles, including Sins of a Solar Empire: Rebellion, Elemental: Fallen Enchantress and The Political Machine 2012 will only be available as digital downloads. The titles will be available for purchase through digital resellers, including the GameStop PC application, and consumers will also be able to buy the titles from GameStop’s more than 4000 retail stores in the United States. When purchasing a title at a GameStop store, the consumer will receive a redemption code that will allow them to download, install, play and update the game through the GameStop PC application.