It isn't the size. I love small. My home is only 1300sqft. It seems large on an acre wooded lot. Although it is amazing with three of us and a dog how quickly you fill crap up and need a shed and the shed gets full too. For me it is the cost of these mobile tiny homes. It just doesn't seem like a good deal price wise once you have to spend 70K on a vehicle just to move it. I really like the airstream or vintage trailer idea. Now if you live in a really cold area a tiny house is a really good idea. Only I would just buy the land and build normal small house better deal for the money.