I think some people are trying to automate the wrong domains, there are easier challenges to solve around the house first, besides, people love eating out or getting a take away. If corporations thought there was some money in automating the kitchen, all the fast food chains would get together and build an automated kitchen which can be retro fitted into your existing kitchen and serve you up all your favourite take aways, but it aint happening, at least not for a decade.
There are better low hanging fruit to be had in the automation/robot domains, if you think about it.