Merchants sought to maximize their profits. Such products that required specialized craftsmanship were unlike goods like gems and spices. If they could produce it themselves, the profits would naturally be much higher than importing it from faraway foreign lands. Therefore, not only Merchant Tan, but some business-minded merchants had also hired craftsmen to open it. However, very few of them found a way to assemble the parts, and even those who did, couldn't figure out how the inner mechanics worked. This was why until now, Great Qi had yet to produce a music box on its own.
When Merchant Tan saw that the few young masters had it, he could not help but sigh at how talented the Prince's estate and Duke's estate were, to actually successfully develop it.