Video Game Addiction: Mental Illness?

[Grandpa Gohan]

I heard Evercrack, but we all know MMO's are supposed to be addictive because the main purpose is to be a time/money sinkhole. But while I've heard of evercrack, I've also heard of work-a-holics. Are they not the same thing? Isn't that the same thing that you said? If they get stuff done and get a promotion because they were diligent(or to make my point: addicted), wouldn't that be the equivalent to a level-up in an MMO?