Captive pricing strategy diverges from optional pricing and other strategies by creating a scenario where the core product, while priced competitively, requires additional, proprietary components or services to function effectively. This is particularly prevalent in the printer industry, where the printers (core product) are sold at a low price point, but the proprietary ink cartridges (captive products) come at a premium. This strategy ensures customer retention and recurring revenue but lacks the element of choice inherent in the optional strategy.