The standard of construction has also changed since 1914. Not only do few people want to build a 900sqft freestanding home, if they did it today with that Sears kit, it would break nearly every building code in the book.
A more equal comparison would be to a prefab or mobile home, which you can get for that inflation adjusted price.
A more equal comparison would be to a prefab or mobile home, which you can get for that inflation adjusted price.