When I was in high school a guy from the university came to talk to us about nanobots. One of the things he mentioned was that nanobots might someday be used to mow lawns. At the time, it struck me as weird to consider using an advanced technology to perform such a mundane task, but in America it particular, mowing and maintaining a lawn can be a very significant time commitment. I have thought about solving the lawn problem in other ways, such as by using a goat or a cow, but then the yard would smell farmy, not to mention poo disposal is less enjoyable than mowing grass. I like the look of a nice lawn, but honestly to me, it seems a bit frivolous and wasteful. Consider how much water is used and all the fertilizers and other chemicals that get sprayed onto lawns and then all of that residue washing into street drains, not to mention the space that is either under utilized or never used, except as a space to mow and maintain. That said, my views may change. If you built your dream home, wouldn't you then have a lot of home responsibilities and also an increased interest in maintaining it?