We get our signed authentic memorabilia in person!

That's a fantastic approach! Acquiring signed memorabilia in person adds a layer of authenticity and connection that many collectors and fans appreciate. This direct interaction can significantly enhance the value and trustworthiness of the items you sell. 
Here are some potential benefits and selling points you can emphasize:
1. **Authenticity Assurance**: By obtaining signatures in person, you can assure your customers that the memorabilia is genuinely signed by the fighters. This builds trust and credibility.
2. **Personalized Experiences**: Sharing stories or experiences of meeting the fighters can create a more engaging narrative around the products. Customers often appreciate knowing the story behind the item they are purchasing.
3. **Exclusive Items**: Focus on any unique items that may only be available through your platform, showcasing the special nature of your memorabilia.
4. **Events and Fan Engagement**: If you host events or have meet-and-greet opportunities with fighters, highlight these experiences as a way for fans to connect with their favorite boxers.
5. **Community Building**: Foster a sense of community among boxing fans and collectors. This can be done through newsletters, social media interactions, and special promotions.
6. **Visual Content**: Consider sharing photos or videos of the signing events, as this content can enhance your brand’s story and showcase the relationships you have with the fighters.
If you’re looking to develop specific marketing strategies or content ideas based on this unique selling point, let me know!