Question about Withings Steel HR

Seriously, I bought this one because I got the biggest discount because it was the most expensive version. After a few years I have to say that the part looks best in this colour combination, it is really high quality for the price and also looks high quality in this combination, I am glad that I bought it this way because the other colour combinations can be found at countless other manufacturers. Btw, it looks more gold than rose gold in real life. And as my predecessor said, from my point of view, the black display has to go on a black watchface.

Perhaps the black version is more popular or demand is higher, which controls the price.