When I was in grade school, we almost bought a dome home. We were going to have it built in some remote part of Oregon. I remember going to the model home and couldn't believe how nice it was inside. It felt like a real home. We still pass it when we take the 210 to get to the 5 when we head up north.
Check out the virtual tour at the living homes website – another very cool thing about this company. I love how you can listen as well as click on various points of interest in each room. I think my favorite feature is the compost window.
The only downside is that currently they are only in the LA Area, and are selling for about $750K. Still, I got myself on the mailing list.
Thanks to radiojohno for the info!