What is the current market price of sea cucumber per jin?

As one of China's traditional tonic foods with a long history, sea cucumber has its benefits recorded in many classic texts of traditional Chinese medicine. Sea cucumber is rich in protein and contains numerous nutrients while having almost no cholesterol or fat, making it the best choice of health food for the elderly and those with weak constitutions. As one of China's traditional tonic foods with a long history, how much does sea cucumber cost per jin?
Because of its high nutritional value and scarce supply, sea cucumber has always been at a relatively high price level, but some low-priced sea cucumbers have always circulated on the market. What is the trick behind these sea cucumbers? Lightly dried sea cucumber is currently the most nutritious type of sea cucumber on the market, and Palace-grade sea cucumber is the representative of wild lightly dried sea cucumber, and the cheapest Palace-grade sea cucumber costs about 3000 yuan per jin.
Many people wonder: in quite a few wholesale markets you can find dried sea cucumber at 2000 yuan per jin, and there is also a poorer-quality salted sea cucumber that is even cheaper, around 1500 yuan or so after bargaining, and on Taobao there are even cheaper ones. So what is the difference between these cheap sea cucumbers and Palace-grade sea cucumber?
Palace-grade sea cucumber is authentic bottom-sown wild sea prickly cucumber, with a cucumber age of at least 4 years. Palace-grade sea cucumber is a sea cucumber in China that is truly processed without added substances, and it is an industry representative of modernized, proceduralized and refined processing techniques. In contrast, many cheap sea cucumbers are fast-grown sea cucumbers raised in greenhouses, and some are even processed directly from just-matured sea cucumbers into dried sea cucumber, so of course the price is cheap. Palace-grade sea cucumber has high nutritional value, and the price of genuine Palace-grade sea cucumber cannot possibly be as low as around 1500 yuan; such sea cucumber is either adulterated with sugar or with salt, and not a small amount either, at least over 40 percent.