While a few dedicated archaeologist-numismatists do care about coins and have used them to make important contributions to the study of numismatics, many, if not most, archaeologists view coins as just one means to date archaeological sites. Most well preserved specimens that numismatists prize do not even originate from archaeological sites. That is because most large hoards rarely come to light at archaeological sites; the ancients typically sought to hide their savings away from the prying eyes of neighbors. Instead of large hoards of well preserved coins, archaeologists typically find large numbers of ancient "small change" that was lost over time. Such coins are often so corroded by direct exposure to the soil as to be deemed uncollectible. Archaeologists tend not to treat such coins as important historical objects in themselves. Instead, after they serve a limited purpose as but one means to date archaeological sites, coins are all too often dumped into plastic bags and left to deteriorate in storage that usually lacks proper environmental controls.