I don't understand why so many video game fans are overly obsessed with labels. Hardcore, casual, art... (e.g. "I don't just PLAY videogames, I'm a GAMER!"). It's pretty asinine, and it screams a desperation to be accepted into some cliquish community.
Why does something need a label to be legitimized? Calling a video game art is like calling the statue of David a game. A thing is what it is, and that's all. What makes it different is what makes it good, and necessary as it's own . Even architecture is often excluded from being called art. If I were to define art as I see it, I would say it's a singular, created vision that is transferable aesthetically to others, usually inducing an emotional impression or response.
Video games to me are more of an art "loaf". It's made up of artistic part, but as a whole it (thankfully) becomes something very different with a very different purpose. What eliminates games from being "art" would be that games are INTERACTIVE. When something becomes interactive, you are given choices as to how to experience it. Art is not about a collective input of it's consumers. It is to be viewed as it is. You can't go up and draw a moustache on the Venus De Milo. It's about one person's creation of a thought, idea, feeling. If games were "art", they couldn't be interactive, and a game that's not interactive is not a game. Is Monopoly considered art? This is the same reason I would never consider a "choose your own adventure" book to be an actual "novel".
A game is to be played. A movie is to be watched. A book is to be read. A song is to be heard. Does it need to be more complicated than that?