Having a checklist for Disney Doorables series 2 is an important tool for collectors, as it allows them to keep track of which items they collect and makes sure that their collections are kept up to date. A checklist also provides a reference for collectors to compare and contrast the different series so that they can make an informed decision when purchasing additional items. Furthermore, having a checklist ensures that collectors do not miss out on limited edition or exclusive items, as these can often be under publicized or hard to find.