He gets bored and so he makes his wife and kids uproot their lives and go somewhere else. I've been in the same job and place for 15 years because it's steady work and place for the wife and kids. I often get bored with it, but deal with it - do different projects on the side, et al.
Again, just my take on it. For all I know the family enjoys it. Too often I read articles on guys with families that are more worried about themselves than their families and it just bugs me.