Yeah, my first thought, before I even saw the inside (and then even more so), was if I somehow ended up with that on my property, I'd wait for a cyclical up swing in scrap aluminum, and bang, it'd be turned into cash. Then I'd built a much more energy efficient and comfy space, that wouldn't raise the eyebrows of the local building inspectors/health inspectors/plumbing inspectors, etc., that would also add to my property value rather then trash it. More power to him though!
In this day of composite this and composite that, wood holds its own as a residential building material. It's an amazing material really, and "they" are making more all the time.