it's a little biased for me to say this as a concept artist and a beginner programmer but Yes, I do think games are art. as they are food for your mind. giving you experiences, emotions and showing you places and shaking you up.
I can't recall the artist who defined art by saying "Art is a tool to make visible thinks that aren't". they were probably referring to political satire but i think it pretty much apply on everything i've seen myself and people around me doing when it comes to building games. we pour our poor little souls to simulate a safe environment where you can the experience feelings such as accomplishment, fear and joy. even the programmers make art by making their work so seamless you almost forgot you're inside a simulation. small things such as scrappy menu interface can ruin your authentic gaming experience, giving you additional stress to memorize where you find what you need, not to mention bad physics or camera controls, unless that's the whole point. (yes, Big Rigs and Skyrim i'm thinking about you again.)
as some people prefer like really macro nature photography and some for example classic renaissance oil paintings, games as well serve for different purposes. i enjoy the the ones that take me to far away places, giving me the solitude and feeling of being completely alone, especially with very little clues of what you have to do. as many others play games to meet their friends and compete, or fight for their lives in a zombie apocalypse because some of us just need that adrenaline rush. so all of genres are needed, all of them are art as equally as they serve their purpose on delivering you the right emotion you need on you current life situation. it's not about graphics, not about technology- it's all just psychology. when you find the theme that speaks for you, you will likely enjoy it even if it looks like it's made a century ago.