Costco Wholesale (COST 2.06%) has emerged as one of the world's most successful retailers. Its strategy of selling high-quality bulk goods at competitive prices and razor-thin margins has built the company a loyal customer base.However, Costco's focus on offering the lowest possible prices does not necessarily apply to its stock. Thus, investors need to take a closer look at the company and its financials to know whether Costco will be an obvious buy in 2025.Costco's businessFew can argue with the success o ...