I agree with most of the comments but...
I guess what I felt was like paying for a Mercedes and finding out the car has Kia parts in it and a Kia engine in it.
I was expecting the drivers to be more expensive and more special in a $10k pair of studio monitors than mass produced (maybe somewhat custom made) tweeters.
Welcome to the high end, where price v quality v cost have no relationship. As others have pointed out, stories and bs sell most high end products, not actual performance. High end is sold mostly as a luxury good, not a technology product. Imagine if someone came out with a computer chip that cost 10x as much as a similar AMD or Intel chip but performed 1/2 as well, but then said, we use a proprietary silicon that makes it work better and you can’t measure that improvement. Everyone would say you were nuts to buy it, not in high end.
For speakers, I look to Revel as a baseline. Their most expensive speaker, the best they say they can build runs $20,000 a pair and less than $15,000 street price. Jim Salks best speakers using fully custom cabinets and the best off the shelf drivers are $10,000 (the exoticas are discontinued because no more drivers). If that is the best they can build, I want to know what justifies a higher price. High end buyers don’t care about that, most want to impress by what they spent.