The Pew Research Centre asked 1003 Americans about which appliances they felt were a necessity:
I think the average New Zealander’s list would look pretty similar. Interesting that dryers have fallen so dramatically; when I was in Los Angeles I was astonished to find that my workmates threw all their laundry in a dryer even though they were living in a desert! Apparently washing lines were associated with poverty and contributed to lower house prices so people didn’t use them, but now almost everyone in the US is poor and their houses are worthless I guess it’s okay.
And I’m still amazed that so many people use microwaves. What are you all cooking in those things?