I remember reading easily a decade ago, when people were describing Amazon as a charity propped up by investors, that this was Amazon's long-term strategy--aggressively reinvest all profits, burn through cash making a loss in order to achieve monopoly or near-monopoly status, and then jack up prices once they'd captured the market. It looks more and more like they're following through.
People say the same thing about Uber today. I wonder if they'll be around as some massive mega-giant in 10 years, or turn into another eToys or MySpace.