A few years ago, my g.daughter (whom I often looked after) was aged about 13 hears old and suddenly told me one day - "Grandma - it is not fair!!" Asking her which particular section of her comfortable life was not fair, it turned out that her Mum had insisted that she donated her children's dolls house to the local charity shop. Her moan was that her much younger cousins still had dolls houses and did not keep them neat and tidy.
I told her about adult dolls houses, showed her pictures of them and also stressed the cost of furnishings etc. She was fascinated, so I talked to my daughter and then for g.daughter's next birthday purchased her one. Her Dad, who did not live with them and was then very sick, then purchased and put in all the lighting, etc. into this house. Over the next few years we (g.daughter, daughter and me) attended some special 'fairs' and purchased different items of furniture and ornaments (including ginger cats - as they had two real, full-size ones at home). She learned how she had to budget and save for some items for this house. It is lovely.
She is at Uni now and obviously has left this at home. Dad died three years back - but that lighting is still a good memory of him for her. Will probably stay in her large bedroom until she gets her own home.
I love it and when I stay there always have to open it up and have a peek inside. Found it quite difficult finding and purchasing modern people for it - but they do exist if you hunt around.