PvP web comic artist and author Scott Kurtz goes about discussing video games in moderation:
My grandfather had a saying which was passed down to my father and then to my brother and I. "Everything in moderation." It is the cornerstone of a good and healthy life. It is the foundation of a balanced existance. Learn it, love it, live it. Teach it to your children and force them to live by it. "Everything in moderation."
Even with video games in moderation, it may not be enough.