[Cthulhu_]

And then there's sales. All of those three - and more you haven't considered, like the Chinese mega-IT companies - spend huge amounts on training, partnerships, consultancy, etc to get companies to use their services instead of their competitors. My current employer seems all-in on Azure, previous one was AWS.

There was one manager who worked at two large Dutch companies and sold AWS to them, as in, moving their entire IT, workloads and servers over to AWS. I wouldn't be surprised if there was a deal made there somewhere.