Many investors absolutely love Costco Wholesale (COST 0.07%) stock. But the late, great Charlie Munger might have been the most head-over-heels for this warehouse-style retail chain. Shortly before he passed away, he did an interview with the Acquired podcast and explained some of the desirable traits of Costco's business model. Munger, Warren Buffett's right-hand man, talked about how it delivers exceptional value to its customers, who in turn deliver exceptional loyalty. For the unaware, Costco keeps pric ...