It's probably because by and large Amazon kills physical products and Google kills services. If someone buys a Fire Phone and it gets discontinued - well, prod

It's probably because by and large Amazon kills physical products and Google kills services. If someone buys a Fire Phone and it gets discontinued - well, products getting discontinued is part of life and it doesn't (usually) affect the usage of the one you have. If Google builds a web service, then that service has the chance to grow to 50m / 100m users before deciding that it is not worth supporting. Law of large numbers says of those 50/100m a non-trivial proportion will invest substantial time in it and get pissed off when they have to make alternative plans. If Amazon killed Prime Video or Audible, I bet you’d see a pretty huge outcry.