Since developing/playing games is one of the forms of media/art I work in, playing games actually helps improve the quality of my art. Plus sometimes it'll give me ideas for writing. Granted, I don't play -all day-. I usually play for somewhere between 1-4 hours, sometimes more if I am talking to someone in the meanwhile or really into a game.
I've been gaming more than drawing lately as I've been in a cruddy place as I've been unemployed and a lot of my art motivation went away. But I'm sorting things out as I got a job (yay) so I'm trying to work on more art.
To be honest, it depends on my mood. There are some days where I can't stop drawing or writing and I feel very productive. Other times, I can't resist that sweet sweet sound of gaming music, bright lights, and interactive monster battles. Still, even in my most inspired moments I probably spend more time gaming. Games are just so fun and addicting.