As far as the context and meaning of art may reach, I wouldn´t conside games as art due to a simple matter: games are not meant to be only appreciative, like the traditional forms of art - painting, music, dance, sculpture, cinema. You either create them or you just appreciate them with your senses (audition, vision). You´re not supposed to intervene in them, just appreciate.
Games are essentially a challenge to be solved, be it a challenge against the CPU or against other players, or even against your own goals. They have more similarities with table games than with art itself. But games DO use a lot of artistic elements and concepts, such as music, acting, design, artwork. Then I´d say that those elements are art, but not the game itself.