Niether the Abyzz or the Royal Exclusiv pumps have any parts sourced from China short of maybe some IC's or transistors. If you pick up one of either of these pumps and then pick up a Chinese DC pump, you'd feel the difference. These Germany pumps weigh 3x as much because they are built with quality components. These are not some chintzy plastic pump. Instead these are well built and well engineered. They Have titanium parts instead of stainless or plastic. They are safe when used externally and won't leak unlike the Chinese ones tend to. They are much more efficient gallon for gallon, infinitely more reliable, have a better warranties etc. I could go on and on but I suspect it will fall on deaf ears for some. Make no mistake though.. Just because they move water and have variable speed doesn't make them anything like a cheap Chinese DC pump. No more so than you can compare a Moped to a Ducati or Harley.
I will put it another way for you. Some may be happy driving a Kia or Hyundai while others prefer the quality of a Mercedes or BMW. Some prefer the fact that the aforementioned cars have metal panels and don't sound tinny when you shut the doors becuase they and aren't made out of plastic. They have real leather and not vinyl. Of course some of that is an analogy but I think you get my point. Like all cars get you from point A to point B, pumps move water. Some just do it better, more reliably, quieter and more efficiently and have better warranties just in case you ever need it. You do get what you pay for in that market.
Personally, after 27+ years in this hobby, I've learned that quality is much more important than cost for me. Especially when some of us have tens of thousands invensted in our reefs and live stock. A return pump failure is completely unacceptable to me. I will NEVER sacrafice quality over cost. To each their own though. Everybody is different.
I agree totally, and I personally think it is the same for anything in life. As an example, I am also a dive instructor, living in Canada. I do 100's of dives a year, including through the winter in freezing temperatures under ice. My son who is now 16 also dives, and I certified him at 10 years old once he was allowed. I ONLY buy quality products, such as my regulators which to me are life support systems that have to be relied on 100% every single dive! I would not put my sons life in the trust of a cheaply built product. Even doing many more dives than the average person, I have never had a single issue with any of my equipment. That being said, I also do the regular maintenance when it needs to be done too. Maintenance is always a part of safety and ythings running smoothly.