Do you think alternative, sustainable and eco-friendly houses are good investments? There has been an increase in these type of homes lately, especially out west. And I have to admit, I'm fascinated by many of them. Some examples are earthships, cob homes, strawbale homes, solar-powered and wind-powered homes, homes with a green roof, homes with gardens inside... There are just so many types, too many to name in this starter post. What do you think?