Facebook can be a strong platform for selling higher-priced items, but growing it into a main income source requires a strategic approach. First, optimize your listings with high-quality images, detailed descriptions, and competitive pricing to attract serious buyers. Use Facebook Marketplace and relevant buy-and-sell groups to expand your reach. Second, leverage Facebook ads to target specific audiences interested in your niche products, focusing on retargeting and lookalike audiences to improve conversions. Third, build a dedicated business page to establish credibility, showcase customer testimonials, and engage followers with valuable content. Finally, consistently analyze your sales data and adjust your strategies to align with what works best for your target audience.