How do conventions, online platforms, and social media influence the buying, selling, and trading of comic books and related memorabilia among collectors?
What are some of the most iconic or rare comic books and collectibles, and what makes them particularly significant or valuable in the collector's market?
How has the comic book industry evolved over the years, and what impact has this had on the types of memorabilia that are most sought after by collectors today?
Can you explain the significance of grading services like CGC (Certified Guaranty Company) in the comic book industry, and how their grading criteria differ from other collectible grading services?
What are some notable instances of comic book series or issues that have substantially increased in value over time, and what events or changes influenced these spikes?
How can someone start collecting comic book memorabilia, and what types of items (e.g., action figures, original art, movie posters) are considered most valuable or sought after?