Costco Wholesale Corporation (COST) continues to capture investor attention with its stellar reputation for value-driven offerings and robust financial performance. With the company recently reporting impressive October sales, the buzz around the stock has intensified. However, this enthusiasm has also reignited concerns about its lofty valuation, prompting the question: Is Costco still a smart buy?The debate is understandable. On one hand, Costco's ability to drive consistent revenue growth and retain loya ...