My tiny kitchen doesn't really have room for a dishwasher. I would have to sacrifice valuable storage space and that isn't worth it too me. Also, I would have to do plumbing changes to create a water hookup. That seems like a headache. Also, I am noise sensitive and I don't think I could deal with one more appliance that makes too much noise. The washing machine and refrigerator already take so much out of me. For years, I hand washed clothes so I wouldn't have to endure the noise. I also tried turning off the refrigerator so I wouldn't have to deal with the relentless humming nonsense, but that didn't work out well. The dishwasher, unlike say, the furnace, would not give me enough benefits to outweigh the noise cost.
I wash dishes by hand in a plastic tub with cold water. I stack all of the dishes in the tub, then wash the first dish with a wet, soapy washcloth. I then turn on the faucet, rinse off that item, and turn the faucet off. The water goes down onto the other dirty dishes, which I have stacked in such a way as to maximize on the water collection. I continue this process from cleanest to dirtiest dishes. This way, the dishes that need some extra water to get clean have that advantage. This process uses much less water than a dishwasher and also allows me to pour the water on plants when I am finished. Even if it did use more water, I pay a flat fee for water, so the financial cost would be the same.