Earlier quoted context omitted.
I understand where you are coming from. I'm just 'starting out' with a lot of this, despite a few years building/hosting websites, and these sort of services are the things I'm starting to look at. I'm completely disinterested in Amazon's offerings chiefly because they're so obtuse. Why should I expend so much cognitive load just figuring out what each service is and what it could do for me? It's undoubtedly possible…
Because when you figure out how to use them, you can save a tremendous amount of time and energy, and build sophisticated systems with simple code and little effort. When you have the need in a certain area, a lot of them will feel like "Wow, I didn't know that someone could automate this for me with so little effort compared to doing it myself". Most of it becomes increasingly valuable as you operate larger systems…
I find this is the key to understanding a service, library or technology. It is very difficult for me to wrap me head around something if I haven't yet encountered the problem it solves.
For example, I'm sure Docker is awesome, but I don't really understand it yet because I haven't yet felt the pain Docker takes away. So I enjoy following new technologies, but when I don't really see the point I just assume I haven't experienced the pain the new technology takes away.