On the addictive nature of video games

Okay so my actual post isn't going to be nearly as intense as my title implies, it's just a couple of links really. Firstly here's one about a guy in China who over-did it somewhat and paid with his life.
It really does make you wonder.. Did people die with the advent of TV? or Radio? or Print Media? or even.... Sport? Why are these games so much more addictive?

Secondly here's an article about a Rehab centre in Amsterdam that specialises in rehabilitating game addicts. It's all rather worrying if you ask me. What is the line? When does someone cross for being an 'enthusiast' or 'casual user' (to use more drug-related vernacular) to being a full-on addict?

But anyway, thats all for today, just thought I'd give you something to think about.

Sam.