An object of a type that is valued or sought after by collectors. This term is used less with high art than it is with crafts, memorabilia, and other objects that are becoming rarer, and were previously little recognized as worthy of collection. Another sort of collectible is that which is designed to be marketed as instantly collectible. Examples include sports cards, certain toys, medals, porcelain plates and figurines. At worst, "collectible" is applied in a calculated and inauthentic manner by manufacturers and sellers of new products to increase their appeal, when otherwise those things are simply gewgaws, tchotchkes, kitsch, or replicas. Some of the earliest collectibles of this sort were included as incentives with other products, such as cigarette cards in packs of cigarettes. Popular items developed a secondary market and sometimes became the subject of "collectible crazes," as occurred with Beanie Babies and Pokemon cards, manufactured, as many collectibles are, in series, in order to encourage the gradual buying of larger and larger collections. The early versions of a product, manufactured in smaller quantities before demand has begun to grow, sometimes command exorbitant prices on the secondary market. In a mature market, collectibles rarely prove to have been a sound investment. Although some authorities accept "collectable" is an alternative spelling, it is commonly considered incorrect. According to a study of Usenet traffic several years ago, "collectible" was among the most frequently misspelled of words.