4. **How has the market for hockey memorabilia changed over the years, and what are current trends in collecting?
3. **What are some of the most sought-after pieces of hockey memorabilia among collectors, and what makes them so desirable?
2. **How can one authenticate a piece of hockey memorabilia and ensure it is not a counterfeit or reproduction?
**What factors contribute to the value of a piece of hockey memorabilia, such as a signed jersey or hockey card?