Instead of stocking every product variation, Sol Price's "intelligent loss of sales" system offered only the best-value item (e.g., one size of oil). This deliberately lost some customers but radically simplified inventory, labor, and checkout, creating an unbeatable cost advantage.

Compared to Costco's ~33% private label share, PriceSmart is only at 19%. Growing its own branded offerings, especially in fresh food categories, represents a significant, untapped opportunity to improve margins and deepen customer loyalty.

Following lessons from Sam Walton and military history, PriceSmart prioritizes owning real estate and distribution centers. This control over its supply chain is a critical moat that ensures stability, manages costs, and provides a decisive advantage in unpredictable environments.

Against his company's wishes, Kroc would tell restaurant owners to stock up on paper cups before a price increase. This prioritized the long-term relationship and built immense trust, proving he was on their side. It's a powerful lesson in choosing relationships over short-term transactional wins.

To solve for quality and consistency with independent farmers, Matt O'Hayer applied his franchise experience. He created a system where Vital Farms recruits farmers, dictates the exact production methods, and buys all their output. This centralized branding and quality control while keeping production decentralized, enabling rapid, consistent scaling.

To bypass exploitative middlemen, La Colombe had to do more than just show up. In places like Haiti, they had to prove their commitment by returning "time and time and time again." This consistency built the trust necessary for farmers to risk working with them directly.

PriceSmart's higher-priced 'platinum' membership tier is particularly appealing to small and medium enterprises (SMEs) like restaurants and hotels. These business customers seek quality and consistency, making them ideal targets for upselling to higher-value, recurring revenue plans.

Contrary to typical advice to grow fast and be asset-light, PriceSmart expands at a deliberate, controlled pace. It focuses on owning its real estate, which provides long-term control, operational flexibility, and a more durable business model in its target markets.

Charlie Munger prized 'win-win' systems, and Costco is the prime example. By offering clear value to all stakeholders—low prices for customers, reliable partnership for suppliers, high wages for employees, and steady returns for investors—Costco creates a self-reinforcing, durable competitive advantage that is difficult to replicate.