I disagree; it's not absurd at all. Perhaps you don't care the clothes-destroyer the previous tenant left makes holes in your wife's silk pajamas. Washers and dryers are very personal items (some prefer top vs front loaders) and are exclusively freestanding, temporary appliances.
Dishwashers OTOH are often plumbed in, sometimes hardwired, and fastened to the counter.
Not to mention most people don't know how to properly care for them (when was the last time you cleaned the filter?). If I moved into a new place I'd probably replace the dishwasher straight away.
I've never brought a washer/dryer from one house to the next when moving. In my experience, it's been fine. Sometimes I had a washer or dryer that I didn't like all that much (took longer than I'd like, confusing controls, etc.), but I've never ended up with one that damaged my clothes or was so bad that I needed to replace it.
I'm sure there are many instances where there are replacement-worthy problems, and there certainly are people who have splurged on really nice appliances and will want to take them with them when they move, but I think those situations are uncommon enough that, overall, people save time and money by not lugging their washers and dryers with them every time they move. (In places where it's common not to move them, at least.)
Every time I have moved the contract stated all appliances stay. The legal default is you take them all - washer, dryer, stove, refrigerator, dishwasher, light bulbs, window shades. However realtors all know to put into the contract what stays because most most people want those things in the house and don't want to move them. However more than once I've bought a house without something (the old fridge broke a week before they listed the house so they didn't bother replacing it). If something isn't in the contract and you leave it behind they can charge you for disposal of their garbage!
That's ridiculous. Washers and dryers are expensive appliances.
Unless this guy is paid more than a half million per year, then the four hours spent on the install here are less than the cost of a new washer and dryer.
Starting with something that you know works can be a time saver, even if it requires a bit of hackery. The alternative is buying new, which for appliances often means buying into some kind of consumer-hostile scheme that the old models weren't subject to.
Dishwashers OTOH are often plumbed in, sometimes hardwired, and fastened to the counter.
Not to mention most people don't know how to properly care for them (when was the last time you cleaned the filter?). If I moved into a new place I'd probably replace the dishwasher straight away.