I am good friends with a couple who recently upgraded from their apartment and bought their first house. Long story short, but one appliance after the other started failing in the kitchen and they, being high earners, diligently did their research and replaced them with high-quality appliances that just happened to be stainless steel.
When the dishwasher died, they knew they wanted a Miele with a cutlery tray. All other options checked out, they landed on a model that had a white front or a stainless steel front for ~$100 more. After mulling it over, they decided it was ridiculous to pay an extra 100 just for a pure aesthetic, so they went for the white one.
For reasons unknown to my friends, when they unloaded and unpacked the appliance, it was the stainless steel one after all! Turns out they had bought so many appliances from the same retailer recently that they footed the extra.
Do people really care that much about their appliances matching? We have all sorts of different things in our flat. Even if it was important to me, I could look at a kitchen and go "Oh, goodie, 2/5 appliances are already stainless, yay!", I wouldn't go "Boo, these appliances don't match. -$10k value!".
I would look at exactly what your needs from a dishwasher are and the budget you are shopping within before adding any aesthetic preferences.