Why are its profit margins so high right now? "Your goal as an investor should simply be to purchase, at a rational price, a part interest in an easily understandable business whose earnings are virtually certain to be materially higher five, ten and twenty years from now." [emphasis added] -- Warren Buffett, 1996 letter to Berkshire Hathaway shareholders. Deckers Outdoor (DECK -1.36%) is a beloved stock right now. It owns popular shoe brands such as Hoka, was included in the S&P 500 in March, and recently ...