why is shipping so cheap on facebook marketplace often relates to the peer-to-peer nature of the platform. Facebook Marketplace allows individuals to set their own prices and shipping terms, and many sellers use cost-effective shipping methods through USPS or UPS discounts. Facebook also occasionally offers subsidized shipping to encourage adoption. Additionally, sellers may offer local pickup to eliminate shipping costs entirely. The platform’s simplicity and lack of formal fees (in many cases) contribute to low overall costs, making it appealing for casual sellers and buyers alike.