That, people with multiple laundry rooms (somewhat-large McMansions with two or more floors may have these) who buy one to see if they like it, then buy another

That, people with multiple laundry rooms (somewhat-large McMansions with two or more floors may have these) who buy one to see if they like it, then buy another (same or a different one), people with enough money to buy washing machines for someone else (or "this one's OK but I'm open to buying another if it looks better, and giving this nearly-new one to my kid/parent/friend" or whatever), et c. With those kinds of low-frequency purchases it doesn't take a lot to make one category of buyer twice as likely to buy a second time as the population at large is to buy one in the first place—even if the notion seems silly to most people seeing the ads.