You might want to look into this a bit more before you bash it. There is at least one company building houses (multi-story even) out of those things (in California, I think, but I might be wrong). Insulating them is as easy as covering the inside and outside with spray on insulation. The corrugations in the metal help to hold just the right amount. Used shipping containers are also pretty cheap, and they are designed to be stacked while full of very heavy cargo. The typical house has much lower density of stuff, meaning you can safely stack them pretty high for a multi-level home, even if they are no longer in good enough condition to use for shipping (the company that makes them cuts out sidewalls to make larger rooms). I mentioned this before, but shipping containers are also extremely Earthquake resistant (like, a fault could open up right under one, and as long as it was still well supported on both sides, it would probably be fine). And, as someone else mentioned, they are practically fire proof. (Also, they are their own built-in lightning rods, and if it was not for electrical codes assuming wood and concrete are the only viable building materials, you could even use the house as a ground rod under the right circumstances.)
There are only two difficulties with shipping containers. The first is that electrical codes were not designed with metal walled houses in mind, so they tend to prohibit things that would make shipping container homes far safer than other materials (well, safer than they already are...). The second is that it is far more difficult to hide wiring in the walls, so surface conduits tend to be better.
Shipping containers make great houses at a very affordable price. That said, Rob probably could have avoided a lot of problems with a few buckets of stucco and maybe some paint. While I am all about letting people use their land the way they want, I can understand people considering that thing an eyesore.