They say that because owning a home allows you to reduce your bills, but also more crucially and viscerally because owning a home allows you to be free and have a place that is truly yours to do with what you will. You can paint the walls, have a pet, host a party, knock down a wall and build an extension, do whatever you like to make your mark on it and the world. It's yours and if you will it, it always will be. It's a level of peace and security that's almost incomparible. There's a reason in most of history there was a distinction drawn between bonded peasants and freeholders.