@Duncanma: My brain can't fathom the economics and boredom of retirement that spans decades.  I really don't see another generation being able to afford a long retirement like our parent's generation.  I had always sensed from my father that he wouldn't retire just to retire.  However, not too long ago he decided to retire and quite frankly said it is because he is tired (unspoken ... of people's crap).  I never thought I'd hear those words.  So I'm working as long as I can.  How long that will be, who knows.