This whole current thing with foaming at the mouth over bots taking all our jobs in the next few years reminds me a lot of how VR was being talked about in the early 90s. It's still early in the game, folks.
This stuff is not small. The cost reductions achieved through shrinking transistors are irrelevant here. You can only go so cheap with moving parts that need to be strong and durable.
For widespread adoption, cost is probably the biggest factor. Actually getting close to the same performance of a full time worker who grosses under $20k a year for a lower price is going to take a lot longer than many people seem to think. Throughout human history, we've repeatedly solved labor problems by throwing heaps of desperately poor human slaves at them, and we continue to do so-- competing with that model will be difficult.
Absolutely correct - keeping in mind that most of the (often undocumented) people cleaning your room in places like California are making around $10K/year or less.
Fully automated "Cleaning a hotel room" is actually an insanely complex task across tons of disciplines - solving that problem will also result in you solving a lot of the Artificial Intelligence challenges.
I think what we'll see much earlier, is a hybrid solution, where automated bots that can do 99% of the tasks send an interrupt to a controller when they encounter something they aren't certain of, such as, "Is that a lifelike doll laying on the floor, or a child lying very quietly."
You don't just need a robot that can make up a room as good as a human does it, it also needs to be cheaper than that human to "hire".