Interesting. I have seen a hotel made from shipping containers. The containers are prepped and finished, transported to the building site, and slid into a metal framework; a new twist on modualr building techniques. I live in an area that is tornado prone, so using these to build a “Hobbit style” home is appealing. The containers are strong and can be rustproofed. I have even worked-out ways to make access to piping and wiring easier than a conventional home.