Not that these dreams aren't achievable, but I was delighted when I realized, that I had my very unpractical dreams come to true while playing eso.
* Own a island to get away from people. Got the grand tropical hideway house. While I have done nothing with it yet! It is my little dream island.
* Own a grand library like bella in beatuy of beast. Mind you I do own a couple hundred books, but I have the psjiic house to make it my own library.
* Own a tree house, not the biggest dream but which kid never wanted one. ( Gorniar estate)
* Own a castle like a queen. Dawnlight Palace
lesser dreams
* Own a workshop to let my mind to things like crazy unrealistic scientists
* Own a zoo, just a place to take care of wild creatures
Acquired dreams
* Design the perfect guild house
* Design a duel arena
* Design a inn
* Own my forest
So yeah for those who say housing isn't practical you might be right, but it lets us do unpractical things and explore and build our fantasies.