This doesn't have to be a zero-sum game. We CAN have housing wards like we do now AND instanced housing. They are not mutually exclusive. Some people don't care if they are in a regular housing ward or not, they just want a house and a yard to decorate and use. And if someone really wants a house in a ward, well they can buy a instanced house and decorate and when the time comes that someone relinquishes a house in a ward, instanced housing people can buy the plot and transfer their house to it, assuming they get to the plot first.