Living in space is just unrealistic. There've been people saying they're going to live on Mars for decades but I don't see it happening. Although Richard Branson seems to think Virgin Galactic will have hotels in space at some point in his lifetime.. and spaceships that can do a Britain > Australia trip in 3.5 hours.
Space is being underestimated. Think of the care it takes specially trained astronauts to not drift, to not expose themselves to the elements (way, way below freezing with no oxygen).. there isn't even sound in space. The amount of casualties and billions of pounds that'd need to be invested in making such a thing possible is absurd and not realistic at all. Most of all, a waste. We can't even look after our own planet without tiring it of resources and ruining the ozone layer so why should we feel entitled to move to other planets and repeat that without first learning how to take care of our own planet that is fully inhabitable & special in terms of sustaining our life with no effort needed.