Well, there are two established points of view on this problem - idealistic and cynical. Idealistic view says that after a while it would cost almost nothing to produce food, clothes, even housing for every living person, so it would became a part of the guaranteed social minimum. Luxuries (informational also, like newest music, books and other art) would cost real money, which would be available to small, but active part of humanity, but most of the people would be pretty happy with what they can get for free.
Cynical view says that only a tiny fraction of all people would still be entitled to more and more luxurious style of living (maybe even smaller than 1% of population), and their status would be reinforced through ever rising army of robotic workers, policemen and even soldiers. Maybe they'll keep a small batch of second-class citizens - high-level engineers, scientists, entertainers, servants and so on. Everyone else - well, tough luck, there's no more free resources in this world, and you don't have any money to pay for anything, including basics like food and living space. Death camps or even processing plants are going to solve this little problem quite effectively.
I think in the short run we'll have something in between - world elites are still like to show that they care for the "common folk", but in the long run - who knows? What's interesting is that dystopian future has more promise for us as a species - it's easier to move to the new frontiers when you just can't stand home any longer, than when your life is an endless holiday. So in order to eventually colonize other worlds we may have to rely more on people's greed, stupidity and other "bad traits", than on people's rationality and goodwill. Anyway, only time will tell how it will all work out in the end.
On the eighth day, God created FORTRAN.