- This question explores which items are considered rare, valuable, or particularly desirable, such as original props, costumes, or limited-edition merchandise. 2. **How does the provenance of a piece of Doctor Who memorabilia affect its value?

- This question explores which items are considered rare, valuable, or particularly desirable, such as original props, costumes, or limited-edition merchandise. 2. **How does the provenance of a piece of Doctor Who memorabilia affect its value?