By 2015, Amazon had become one of the world's largest e-commerce players with nearly $90 billion in annual sales. Although its profitability had been uneven in the 20 years since its inception, its stock price had risen almost 24,000% since the company went public. During this time Amazon has spread its business across a variety of products and services that some see as unrelated. Was Amazon spreading itself too thin or were its investments positioning the company for the future?