[abysmalpoptart]

it has, but i maintain that it's a decent idea. only make sure that the upgrades are minimal, so that buying a new house is still the better idea. so buying all your upgrades wont give you more happiness than the next house for cheaper, etc.

although, it could still work if you when you buy your new house, you lose those upgrades (they dont sell back for the same price, but they do increase the value of your home). it would make sense, and it would be more reasonable for zenny and err to implement, i think.