All of your points are good but, keep in mind, a robot that is capable of changing your physical world for the better is capable of doing the opposite. A robot that can get you a beer can also drop one on your toe.

For this reason, I expect the "personal robot revolution" to occur at the nexus of wealthy/non-litigious. I'm not quite sure where that is maximized on earth at the moment, but I'm quite certain its not the USA. (My current bet is Chinese cities)