Game packs and stuff packs are just worse versions of an expansion pack. If we could get a world for every pack we get we could get more things to fit in one pack. The reason why we get limited things on stuff packs is because stuff packs are meant to be empty so that you go out to buy the other larger packs. The only pack that doesn't seem to be like this is the laundry day pack, but other than that I feel like the rest should have been added to the bigger packs. Actually laundry should have been given to the base game as a main household function.