It's super easy to come up with scenarios that a wheeled bot can't cope with, but again "good enough, cheap enough" will probably see lots of wheeled bots on the market. I am just trying to show why the pioneering companies would be interested in bipedal bots, it's a long term play.
Lastly, the elephant in the room is that basically all general purpose bots are a euphemism for military bots that will need to operate in unknowable conditions.
Exactly, we need legs when they are specifically needed, and we already have wheeled robots so building legged robots that can move like a human will cover so many cases we currently cannot cover.
And even more important are arms and hands, and legs is a precursor to that, they are much simpler so its smart to start with legs to then try to make good arms and hands.
I mean I wouldn't buy either unless I could be certain it's not uploading all data to the cloud and be fully controlled by a user hostile company, but if we're talking fantasy tech ala Detroit: become human... Yeah, it'd be willing to spend a lot of money to have all chores taken care of by a humanoid robot.
And in before someone talks nonsense again wrt "you already can, just pay someone to do it for you"... I do not want to have strangers in my home. This is also essentially why I wouldn't want any cloud connected bot anywhere innit.
But that's going to be hilarious. Imagine your internet goes down while the bot is half way down your stairs, or the in the middle of pouring a drink. Very fun.