There is nothing on those higher end versions which make them worth anything close to the markup on the Bosch 800 fridge.

If I'm going to spend almost 2X, you better give me at a minimum fully metal and glass construction (almost no plastic). I get slightly more metal and slightly (very slightly) stronger plastics. That's about it.

What a scam. Don't buy Miele or gaggenau. If you want a truly high end fridge, you'll need a built in made by someone like subzero or its competitors.