The whole "who am I to tell my brain otherwise" seemed to meant to be tongue-in-cheek, and you kinda sound like you're twisting that to try to push your agenda... (no offense intended, I do think addictions in general are bad).

FWIW, just to put things into a bit of perspective, I recall reading some stats saying that the average american spends something like 5 hours per day in front of a TV. (And numbers for, say, surfing the web during work hours weren't particularly exemplary either.)

Regarding social withdrawal, and things like hikikomori (http://en.wikipedia.org/wiki/Hikikomori), perhaps the issue isn't so much of self-discipline, but one of social environment, e.g surely such gamers must develop above average game playing skills, but they might not want to put similar effort into real life challenges because of fear of the unknown, or out of spite of parental/social pressure, etc.