Such prints are called estampes, which is literally the French word meaning print. Estampes are usually printed in very large numbers and are therefore often quite affordable. Reproductive prints are made using the same processes as original prints.
Photomechanical reproductions are copies of paintings, drawings or even other prints.
This is not to say that these images are not attractive or desirable. They are simply more widely available. Before the 19th century, the two factors that determined the number of impressions that would be made of a given print were the publisher's inclination and the durability of the plate or block. Beginning in the late 19th century, some artists put limits on edition sizes and signed and numbered each impression. In general, the lower the total number in the edition, the greater the rarity of the print and, therefore, the higher the value.