I intend to get the DLC, either when Steam puts on discount or when I get my desktop set up.
And Feloidea, I think that they refrained originally from adding religion entirely because, after the creation of Civ 4, the developers got a death threat from a group of Sikhs (they're normally peaceful, don't ask), because Sikhism wasn't one of the religions you could spread. My assumption is that there was a mass protest from the fans for removing religion entirely, so they're adding it now. As you can note, they have added Sikhism to the game. However, I don't want to point it out now, because I am very tired and lazy. Do it yourself.