I have a house but if I get to the point that I no longer want to play a game I wouldn't give a damn. At worse, I would just create an alt, lvl it till I can get retainers and send all my rare decos to my alt via fc chest in case I ever want to come back. When I left the other game, they could have taken all my housing, all my possessions, I wouldn't have cared. I still have a lot there in fact, including store bought things, and meh they can delete it if they want, it is of no use to me.
I have the same mentality when it comes to worldly possessions: unless it is specific documents, if it has been in a box in the basement for a year, I no longer need it.