why is amazon fba so expensive is a common concern among new sellers, often due to misunderstanding the fee structure. Costs include fulfillment fees, storage, long-term inventory, labeling, removal, and advertising. These services, however, provide access to Amazon Prime customers, hands-off logistics, and global reach. While the upfront and ongoing fees can seem high, they often offset the costs of managing your own warehouse, hiring staff, and fulfilling orders manually. Optimizing product size, pricing, and inventory turnover helps reduce overall costs.