Instanced housing is a great idea, and its a matter of servers that is holding SE back from doing this. How many more do they need, how much time do they really need to spend on it, and is it really worthwhile or should they focus the resources to necessary game fixes/additions? Regardless of how much someone uses their 2nd, 3rd, or 4th house they should NOT be punished for it unless they're breaking ToS to get said houses. It doesn't matter how many houses someone owns if it was allowed to happen through normal means of playing they have every right to buy up as many plots as they want. Is it a morally good thing to do considering the situation housing is in right now? Not really, but you can't hold it against someone for playing the game how they want to play it within the rules of the game.