I think housing should be a category in the hobbies section, I think just having the Tours proves that people are into housing enough for it to have its own category. It would also make it easier for people who like it to see each others castles and trade ideas and advice
I looked here the other day for info about the Tours being disabled and was surprised that Housing is not a category listed (never noticed that before). Many are avid decorators or are interested in getting started - it would be nice to have it in the Hobbies list.