Obligatory link to an essay I posted on HN a few years ago and received lots of commentary from the community. This is a very serious problem. I've yet to see much headway being made.
http://www.whattofix.com/blog/archives/2009/02/technology-is...
http://www.whattofix.com/blog/archives/2009/02/technology-is...
The same is true of websites. If I just stop going to those websites I'm addicted to for a week, it breaks the addiction and I won't go back. I have like 20 messages on reddit that I never get around to replying to, and bunch of Facebook posts that feel like more work to read than it's worth. My RSS feed overfilled and I haven't checked my email in months.
The point is, unlike drugs, games don't stay fun forever. You get bored and quit. And if you quit you lose the temptation to go back to them.