Both Chipotle (NYSE: CMG) and Costco (NASDAQ: COST) stocks have been huge winners for long-term shareholders. Their returns have more than doubled those of the S&P 500 index over the last 10 years, with Chipotle up 486% and Costco up 779%. The stocks have different but high-quality business models that have driven durable growth for many years, which should continue into the future.

But just because a business is good doesn't mean the stock is a buy. Investors looking at buying shares of Chipotle or Costco need to learn a history lesson from 50 years ago.

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Source Fool.com