I want to point out here, in Australia there is a brand of socks called Darn Tough that is sold at Kmart, Target and BigW, it is NOT THE SAME Darn Tough brand you see raved online. It’s a completely different sock brand thats been around for about 20 years in Australia and just happens to have the same name. They are not great socks, very thick but don’t last long.
I bought a Miele S8 off marketplace about 5 years ago. After I bought it, I did some research and found the same thing you did. The S8 was the most powerful vacuum that Miele ever made, and used a motor made in Germany. After that model they replaced it with the C3 that is almost identical except uses a Chinese motor.