lets see, if an 8 x 20' used storage container costs around $2000 and you get 160 sf storage , thats $12.50 a square. Add in $7 s/f for your foundation and $1 for transport etc and you have $20.50 per s/f which is a little less than a simple steel building. But if you could set them on existing pavement or just ground set them then you have a decent advantage. Would people have issue with the height or did you intend to use the high cube models? It sure would get a lot af attention. As far as homes go there is very little if any advantage to using them unless the site is unusual or difficult to get crews to. Think ,insulating, attaching furring to the interior for drywall, limited design parameterers, running ductwork, and mechanicals, asthetics, etc. The modular(factory built) home companys are producing some very cool and modern homes that look similiar (in footprint) to the container houses and are delivered and setup in a day but they still are not able to come close to the national average to site build a home($75 per square)