Spot on post @TheFirstMrsDV **
Also I know lots of people who were desperate to move away from their boring hometowns up north and move to fashion forward and exciting London years ago to go to university and get jobs.
They bought property married had children and then buggered off back up north with their London property profit to buy a huge house up north.
They have pushed up prices for local non media Londoners and local working class people up north.
Easier for them to move back as they have a ready made network of other friends also moving back with children from other places like New York plus mum and dad to babysit grandchildren and cousins sisters etc
Then in the Easter holidays they air B and B a place on London for a break after going on about how much better up north is!!!