You seem to think that profit is a dirty word. There is often a large amount of work, R&D, startup costs and risk to bring a product to market. The reward is profit if it succeeds. The risk is financial loss or even catastrophe.
That is true of the cheap speakers I listed at the start of this thread. There is R&D and a large amount of work to bring those to the market. Now take those same products and instead of using drivers that cost $30 you use scanspeaks costing $500. So the price now goes up by $470. However the manufacturers will now charge you an extra few thousand more. This is not justified. It is greed. All the costs you mention had already been accounted for.
No one is forcing you or anyone to buy speakers if they think they are overpriced. And of course, there is arguably overpriced gear out there, and buying used often yields bargains as monied buyers scratch their itches often and sell like-new gear at a deep discount.
The used market is another reason speakers are overpriced. The manufacturers know that the prices will go down on the used market hence they need to start the prices very high to not diminish the perceived value of the goods. Nobody is forcing you to buy overpriced speakers however if you continue to buy overpriced speakers, that will affect the rest of us who want high quality speakers at reasonable prices. The manufacturers will only continue charging us exorbitant prices if people like you consent to it. That is why prices have gone higher and higher over the decades. You are complicit in this.
A good case study is Richard Vandersteen
Thats an example of a speaker that costs a lot of effort to make but you can get superior results for less money using conventional crossovers. Time coherent speakers have never become popular because they dont work. Its a myth. Most speakers arent time coherent and most audiophiles are perfectly happy with that.
Rich people are strange. They want bragging rights so some equipment doesn’t appeal because it’s not expensive enough (which makes them ripe for fleecing)!
And as I have stated they are making prices go higher and higher which makes it harder for ordinary audiophiles to enjoy beautiful sound quality. These ultra high end speakers could be affordable for most audiophiles if they were reasonably priced. Making high quality sound more and more inaccessible to the rest of the public is criminal.
My modest $10,000 audio system (an amount that friends, who think their Bluetooth speaker is fine, think is insane) is a bargain in comparison.
I hope its not an mdf box with drivers in ’em! if so you have been fleeced. Do not be so naive and get yourself a custom tuned system. Your system is mass produced am I right?