Why is the violin so expensive?

The price of the violin depends on the popularity of the piano maker, the piano material (the storage time cost of the piano material, the storage time of a good piano is decades, and it has been stored since grandpa's time) and the craft (it takes a lot of time to make a good piano, and it takes more than one year to paint and air dry). For example, 17 and 18 century famous cucurbit silk and Qin Si, the price even reached the level of 100 million yuan. First of all, their piano manufacturer is very famous. Second, the manufacturing process of the piano has been lost. Third, the piano itself is an antique, which is very collectible. 17 and 18 centuries were the prosperous periods of violin making technology. At that time, the piano maker's art was very good, and the piano made was very beautiful. In modern times, some inherited piano-making art has been lost, and the contemporary piano-making technology can no longer be compared with 17 and 18 century. So now many violin masters hope to get a 17,18th century guqin. Speaking of modern times, one is the decline of technology, and the other is the fierce competition among piano makers in many industries, so the price of violins has dropped significantly. At present, the price of a violin is between several thousand yuan and several hundred thousand yuan (excluding the toy piano made by the factory machinery factory), and the price of a few top violins is around one or two million.