Although Earthships can be quite luxurious and extravagant homes if the owner desires, the concept is being scaled to meet the needs of the majority of the worlds people. The Simple Survival Model Earthship features all 6 principles of Biotecture in the most simplified fashion. You could finish a building like this for less than the down payment on many homes.
This kind of sustainable living should be attainable to all. The remaining obstacle for most people is finding the land to begin. Luckily there are a growing number of places throughout the country where people can build for free… without building codes… and without purchasing land.
Some groups are actually buying pieces of land and opening them up to anyone interested in building the communities of the future.