Despite the promise of disruption, the magicpin-Rapido alliance faces a steep climb. Food delivery remains a tough, low-margin business, where balancing rider payouts, delivery costs, and customer discounts can make or break viability.Despite the promise of disruption, the magicpin-Rapido alliance faces a steep climb. Food delivery remains a tough, low-margin business, where balancing rider payouts, delivery costs, and customer discounts can make or break viability.