[HeyLaughingBoy]

I wonder if it's simply the case that they are more popular in the US. Every house I have lived in has had a dishwasher (some are smart enough to figure out when dishes are clean and stop, instead of just using a timer), and it's generally expected that apartments will have one also.

Washing machines typically have settings for the type of clothes that are inside. And while I've never used one, the robotic Roomba vacuums are cheap and seem to be pretty popular.

If it is indeed the case that uptake of these items is much higher in the US, it would be very interesting to understand why. I doubt very much that it's cost since they're available at multiple price points. Maybe it's something like the reason why essentially no US homes have an electric kettle while essentially no UK homes don't have one. IOW, it's cultural!