This is a common question that's come up over and over: Are Video Games Art? If so, what makes them thus? And so on, and so forth. Typically, the argument is divided by people who don't care for games saying, "No! They're silly kids' entertainment, and cannot be Art!" and people who like games saying something that sounds a lot like, "well, I like them, so they must be Art!" and people who like games, but want to be snooty about it saying, "well, what is Art anyway? And some are Art, and some are not," et al.
But what we're actually talking about here, at a fundamental level is legitimacy: should games be taken seriously as a medium and a format, or not?
And yes, I am using Art with a capital A, because it _is_ to be high-falutin' here. Or some junk. And because I am unable to avoid pretension or fulmination, because I am not as awesome as Shieldhaven. But I digress.
First, we have to separate Art from value judgement. That is to say: whether or not you like something has nothing to do with it's status as Art. There's plenty of bad Art. But the fact remains that movies, books, music, and visual art are all Art, and video games combine these elements with interactivity... thus, Art. But there's another reason too... the economics, the production, and the marketing of video games are all consistent with those for Art of various media.
I shall explain.