You could use your general purpose household robot to farm the back yard, while you sleep or knock back beers................made by your brewer robot.....................
Once we have general purpose robots that can approximate human strength, dexterity and mobility; they will be like an iphone - just download an app, and its a whole other tool.
Gardener, cook, maid, security guard, brewer, baker, cheesemaker, plumber, doctor, DJ, dance partner, all-around handyman. Everyone will want one.