2. **How has the market for DC memorabilia evolved over the years, and what are some trends in terms of collectible demand and value?
3. **What are the essential items that any DC memorabilia collection should include to be considered well-rounded or complete?
4. **How do official licensed DC merchandise and memorabilia differ from fan-made items in terms of impact on the collecting community?
5. **What are the best practices for preserving and displaying DC Universe memorabilia to maintain its condition and value over time?
