There are some externalities to project here. If this happens AFTER full self driving, then everyone that has a car is likely paying 1/4 the price for regular transportation (no car payments, insurance, fuel, maintenance). I expect self driving taxis to happen before humanoid robots. I am in the US top 20% (but not in the top 10%).

1. $20-30k being able to automate *simple* gardening, some cooking, and regular housekeeping (cost of housekeeper is 200-300/month and they do less, gardening is 100/month ). I do these things myself because it's (barely) worth it, but a 20-30k robot would cost 300-500 a month. That would relieve stress.
2. For me there's no extra value in this, I'm assuming self driving taxi BEFORE this robot exists. I also believe that since we crossed the 20% threshold for shopping online we'll rapidly go to 80-90% over the next 5 years (5 years is the minimum time I think we have before level 1 appears).
3. I don't think this is feasible in the next 30 years, but it would be worth as much as a modest house.