Are printed textbooks valuable during Jiaqing period of Qing Dynasty?

Some of them are very valuable, depending on the version, appearance, content, official seal or private seal, it must be a full set to be valuable.

Like some folk woodcut medical books, they are generally cheaper because of their large print runs; And some content is more valuable, the version is rare, and well printed is more valuable; Movable type edition is more valuable.

The most valuable books are printed by the government. Because it is only for ministers, it is usually printed in small batches, and regardless of cost and paper, the printing is excellent, especially in color printing, with a maximum of 4-5 colors. Printing is very labor-intensive, and most people can't reach it regardless of financial resources and technology. So these books are very expensive now ~ ~ ~