Never played Nuke Em but my things is the exclusive material. It might be nice to give people who pre-order your game rewards but that should be something like a cool gun or something. Not a the actual demo that should be given so as many people can experience the game as soon as possible more people who like it more who will buy it. My opinion, probably should rant on their actual website but demos are for experience not a reward to people who will buy the game. Thats crappy logic.