Yeah premium stuff feels nice, as it should given the price. In this case "not that much more" is somewhere north of a 50% premium over mid-range models from the leading brands. If you're cross shopping Samsung then the premium is much larger since they're constantly on deep discount due to their well earned reputation.

I paid $1,100 for my Bosch 500 series dishwasher a couple years ago. The current generation looks like it's on sale for as low as $800. Yale Appliance shows Miele dishwashers currently starting at $1,400. With that kind of premium it should feel better. And, yes, the Bosch feels super cheap.

Miele washing machines start at $1,600 about twice what an entry level LG would cost. While I would never buy an LG, they are generally well regarded in terms of actual washing performance.