i think its because the medievil and science fiction themes are much more popular with the masses(not with me though), i liked the basic military theme of the original c&c, with just a touch of cool futuristic technology like mamoth tanks and the ion cannon. also the cut scenes and story line of both sides was really well done, its one of my favorite games. in the sequels they made it completely a science fiction game, probly cause of the success of starcraft, but they did go back and make c&c generals which i consider a true sequel of true c&c fans