What are some rare or limited-edition Marvel collectibles that have significantly increased in value over the years?
How can you verify the authenticity of autographed Marvel memorabilia, such as posters, comics, or action figures?
What are the most sought-after Marvel action figures or toys among collectors, and why are they considered valuable?
How has the popularity of the Marvel Cinematic Universe impacted the demand and market for Marvel memorabilia?
What tips or best practices should new collectors follow when starting their Marvel memorabilia collection?
