My response was not intended to be comprehensive, but more of an illustration. There are a million places wheeled vehicles can't easily go, that are easier for a bipedal robot to go.
I think you missed my point. I wasn't saying that robots can't or should not have articulated limbs for locomotion. What I was pointing out is that there's no reason a robot can't have the best of both worlds. After all, humans ride bicycles or use roller skates. Heck, I am betting that virtually all, if not all, of the athletes in a typical marathon are wearing shoes. We can do a lot with our feet and our hands, etc. but we're tool users and we use tools and/or vehicles and machines because they're better at various tasks than just using our hands. So the point is that a bipedal robot is fine, but there's no need for an obsession with robots that strictly adhere to a human model. Hence, wheeled feet, because running a half-marathon is fine as a demonstration, but if you just want your robot to go 13 miles for practical purposes, wheels are a lot faster and a lot more efficient. So you can build it with both integrated, or you can have swappable parts, etc.
I also did not just say wheels. I pointed out snow shoes, which certainly go places where wheels have a great deal of difficulty, but so do regular feet.
If you're right, and there's no reason for these robots, people won't buy them, and the market will speak for itself.
I made no such claim. They're perfectly viable. I was simply pointing out that, in the race to create machines that do things the way that humans do them, we have to remember that humans very frequently build devices so that humans can use the devices to do things in ways that humans can't do them.
The average human household is full of such devices. How does a human peel a potato or other vegetable? Nibbling with their teeth (which kind of defeats the purpose), scraping with their fingernails maybe. Or, if they use a tool like a potato peeler. Maybe a grater. Maybe a high pressure steam oven that heats potatoes rapidly, superheating the water under their skin so that when the pressure is suddenly released, the superheated water boils instantly and blows the skins off.
Ultimately, humans have spent thousands of years developing a repertoire of tools and machinery specifically to do things that the human body can't do on its own, or at least doing things better than the human form could. It would be pretty ironic if our ultimate act of invention was a machine that simply imitated what the human body does, but maybe a bit stronger or faster. Naturally, an advanced enough humanoid robot could also use all the tools a human can use and that's fine. But I can't help thinking about all the things that are only designed the way they are to accommodate human anatomy. If we're just having machines do the work, do we actually need things that are designed for humans so that our human form robots can use them.
Here's a classic from lots of science fiction. The robot chauffeur. Why? I mean, the cachet, sure. A chauffeur is a symbol of opulence, etc. In practical terms though, it's just wasting a seat in a car that a passenger could use. Have the car do the driving and have the robot fold itself up in the trunk or on a rack on the back of the car or something. There's a lot of wasted space in most cars on top of the dashboard between the window and the front of the dash. I mean, sure human drivers need that for the whole "seeing with the eyes in their head" thing. When you don't need that, you could put the robot storage rack there.
Should the humanoid vacuum be doing the vacuuming? Or should the vacuum just do it? Something I can't help thinking about is that even quite a lot of people who could afford it don't have human servants any more like rich people would in the old days. One of the reasons for that is all the modernization that has reduced the amount of human labor it takes to run a house. Most people don't need to chop firewood and maintain the fire, for example. Or go around lighting and dousing candles. I will also note that people who have rugs don't seem to take them out and beat them as much. Part of that is because of vacuum cleaners of course. Honestly though, most people's rugs are probably dirtier than people who had a housekeeper to beat the rugs back in the day. A lot of modern house cleaners won't even do that of course, at least probably not as often. Maybe with the humanoid robot the rugs would be beaten once a week, just for something to do. In general though, here's just so much less labor that needs to be done by an extra humanoid in a household.
So, I do actually think a lot of people might well buy these. It's just not clear that it would be any more popular than a completely non-humanoid, non-animal-like robot or a collection of them that performs the same tasks that the humanoid robot could.