Time to short your shorts of Expedia or Priceline? For those old farts out there (like me) who remember the 'poo poo' attitude of hoteliers when the OTAs first appeared, Amazon's entry is (or will be) monumental. Amazon has killed traditional retail, just walk through the streets of your locality and see all the storefronts that are now services: nail salons, dentists, architects, dance studios, etc.