I'd say the washing machine is a lot more important than the dishwasher!

I'm washing dishes by hand in the boat, and yes ... it is a lot of work indeed as the dishes have to be dried up with a towel before they are put in place. If doing the dishes at once and having a good and big enough place where they can dry in the air, it's not that much time saved by using a dishwasher actually. But yeah, I agree very much that the dishwasher has an important function not only in washing dishes but also in storing dirty dishes out of the view.

And I would like to add, conflicts appear even with a dishwasher ...

• With only one dishwasher it's important to empty it relatively quickly after it has been cleaned up. In the office we got two machines now, so that there would be no "queuing" of dishes while the machine is washing or waiting to be emptied. Did that end the conflicts? No, of course every now and then someone is sending angry emails to all complaining on those bastards that doesn't start the machine when it's full, doesn't empty the machine when it's clean, and leaving the coffee cup in the sink instead of in the machine.
• In my youth, the rules for where things should be in the kitchen was stored in the head of my mother, and if I didn't follow those rules she would complain. Twenty years forward, and the rules are stored in the head of my wife, and she will complain if I don't follow them.
• Really dirty things won't get clean in the machine. One "solution" may be to fill up that pot with water and leave it in the sink ... and hope that it magically gets clean. And ... oups, even if we have a dishwasher, suddenly the sink is all full with dishes.
• When my wife is "cleaning" the dining table, it's for some reasons easier to put the dishes on the kitchen bench right above the machine than to actually open the machine and put things into it. I'm actually getting angry, after all it's usually me using that kitchen bench for producing lunch boxes the next day - and with only one metre between the dining table and the dishwasher I think it is equally much work to load things from the dining table into the dishwasher as from the kitchen bench into the dishwasher. In the end, when the dishwasher finally gets loaded and started, we find that only half of all the mess fits into it.
• My wife also have strong opinions on how the machine should be loaded. The small plates goes in the bottom together with the big plates, while the small bowls goes to the top, etc, I'm receiving a fair amount of complaints every time I forget.
• Some things shouldn't be washed in the dishwasher. Since we have no routines on dishwashing by hand, they can often stand for weeks without anyone bothering to deal with it.
• At the other hand, both my wife and visitors sometimes do wash things by hand that could have been put into the dishwasher. That's also annoying me. If things would have been dried with a towel and put back in place ... well, that wouldn't be so bad (at least it would save me the time when emptying the clean machine). The thing is, we don't really have any proper place to put clean wet dishes, so they end up by the sink. From my perspective, it's much better to have dirty dishes hidden in the dishwasher than to have clean but wet dishes messing up that surface. Typically, nobody puts those clean things in place, and after a while nobody knows if it's clean or dirty. Since those things are located right by the sink, they will most likely get dirty before someone cleans them away.
• Be a bit careless when loading or unloading the machine, and ... whops, it's easy to break a glass or a plate, or break off just a tiny piece. Yet another reason for my wife to be angry at me.

So, plenty of room for conflicts, I'm afraid :-)