Ambition.
I am excited. There are many reasons. Story telling has never before seen such a potential for empathy. Video games succeed as an art form when they show you a world, and the choices you make, are the ones that a person in that situation would make. The bard would have you know that the task of a story teller, is to set your words adrift upon the ocean of interpretation. You check them for leaks and reinforce the hull, so that they can be heard and sail through storms of apathy and ambiguity. We now can create worlds. People can then enter the craft, see things that we show them and engage like a person would. Not only that we can assign character to the persona they inhabit. Mass Effect takes this and hits the ground running. You are the hero, Commander Sheppard. The how is left to you, and has lead to the idiom regarding "Your Shepard," or "My Shepard." The differences in how people achieve the same goals within the story add to its intricacy, and carry clou