Sure they are. Propose an EU or non-Chinese Asian alternative to AWS that is, say, 80% as efficient/effective. If that's not possible, then choosing AWS for your startup/scaling business is not the stupidest move you can make, assuming AWS fits your use case.
"MS Windows having a marketshare of 96% should not necessarily stop you from designing your business around linux"
But Windows doesn't have this kind of marketshare in most areas going forward? The #1 OS used worldwide is AndroidOS and no one is clamoring to write for it as far as I can tell.
"MS Windows having a marketshare of 96% should not necessarily stop you from designing your business around linux"
But Windows doesn't have this kind of marketshare in most areas going forward? The #1 OS used worldwide is AndroidOS and no one is clamoring to write for it as far as I can tell.