I would say, a lot of things have to be seen when it comes to pricing. A premium brand from the US/UK and other Western countries will come up with either 1-2 products in a year priced in the mid to top-tier brackets while Chi-Fi brands will release 10-15 products in the same time span sometimes covering a wide range of pricing, and at the same time, we also have KZ pumping out 100 different IEMs from $10 to $200 price bracket with every single model claimed to be competing with those $1-2K priced sets. While I like some of their products, some I don't at all.IEM pricing structures are a mystery to me, they seem wonky at best, even when factoring in R&D, materials, components, and manufacturing. I'm guessing the country of origin plays a role as well. In some cases, pricing seems wildly misaligned with SQ, features, and components. I'd love to see a comprehensive cost breakdown of some of the most popular IEMs in various price brackets.
I'm not even getting into the "value" aspect because that varies based on individual preference. What distinguishes a $500 set from a $1000 set? What distinguishes a $3000 set from a $6000 set? Things like the exclusivity of limited productions, I'm sure play a role. What other measurement/s is there? Supply and demand?
Accepting the fact that many will prefer the SQ of more expensive sets - while others may prefer sets in a lower price bracket, over more expensive sets. Is marketing psychology at play, FOMO, or other dynamics? Just seems wild to me the huge pricing differences.
From my understanding, some brands have developed(or I can phrase this as, Marketed) themselves as premium sound leaders, where each product will have a lot of description about the customized/brand of the drivers being used, the amount of dedication that has gone in designing that CNC-machined Chamber, or how much purity of the stock cable material has. But how much improvement that has in the sound quality is debatable and whether that amount is actually worth the sound quality depends from person to person. If you like a sound, then investing your maximum budget on it is okay, if you don't like the sound a product offers, even a 50% off deal is not worth it.
IMO, for an audiophile, most value for their money lies in the under $500 and max under $1K price brackets. I won't say there are no noticeable improvements in the flagship/summit-fi level stuff obviously they have better technicalities, etc. In the end, Brand also knows how to market themselves, they can not sell OP items just with the marketing gimmicks, they offer improvements, but whether that improvement is worth it for an audiophile with the amount of money it is increasing is, well Individual choice. Everybody sets their own bar for maximum investment in any given category, for me I would at max spend $2k of my own money for an IEM(whether new or old).