HN people might have higher, less-easily-attainable demands for home robots. If you haven't already, read (at least the first half of) Alone Together: http://www.amazon.com/Alone-Together-Expect-Technology-Other...

Robots have to do surprisingly little for many people to significantly bond with them.

See also Sherry Turkle[1], Nicholas Carr[2], etc.

[1] http://www.amazon.com/Alone-Together-Expect-Technology-Other... [2] http://www.amazon.com/Shallows-What-Internet-Doing-Brains/dp...