My parents and my wife's parents both looked into getting geodesic dome homes. They are economical in the right setting but take getting used to. Everything is designed for square rooms with vertical walls. It's tough to get ready made things to furnish one. Maybe there are better products available nowadays. This was about 18 years ago.
I have recently been interested in homes built using alternative materials or modular construction. Some cool options would require moving out of my area. It seems that anything outside the cookie cutter development style home doesn't go well in more populated areas.
I was also in the "Spaceship Earth" dome in Epcot.
