That's 18 hours of the demo! I just keep playing that one free campaign over and over and over.
I can't believe how good this game is. I am waiting for a steam sale, but I'm getting impatient. If I decide to pay full price now, instead of waiting for a sale, should I buy the $40 version that comes with all the DLC, or should I just get the $30 version and wait for the DLC to go on sale later?