Why I changed my thoughts on investing in Amazon? A: Amazon has created a new category of stocks, namely "growth stocks". These companies doesn't focus on profit (like "value stocks" do). But, rely on "cheap credit" to finance their growth. These companies focus on increasing sales numbers (revenue, market share, etc), hoping someday they will convert sales into profits. Valuing these companies is tough because they are valued at "estimates" and prediction, as compared to value stocks where they are valued at "actual annual profits". Valuation is also difficult because these companies have a high P/E, lots of debt. But, you should not forget that these companies have a success ratio of less than 20%. In an era of cheap credit, every unqualified company survive, but only the "fittest" survive till the end. Example of growth stocks are Tesla, Netflix, Uber, Zomato, Etc.