Some of this won’t apply to the 400 because it’s in a case but… They’re cheap. If you want to play around with another OS or something you don’t have to risk y

Some of this won’t apply to the 400 because it’s in a case but… They’re cheap. If you want to play around with another OS or something you don’t have to risk your main computer. You can also run them 24 seven even if your main computer is a laptop that you turn off or move from location to location. The Pi can just sit there. Also great if you’re gonna put it somewhere it might get damaged like outside for a project. It’s something happens you won’t lose too much money. They are a known quantity. Sure there are lots of little x86 boxes but everyone knows exactly what’s on a Pi 7B++. That means pre-configured images for lots of Linux and BSD flavors and probably other things. Plus you can write your own OS! Lots of expansion stuff is available too in the form of hats, on top of the built in I/O. All the above gives it a big community. If you need help with a project or want to find out how to do something there are people and parts ready to help you. Of course it’s quite efficient. I have a tiny GMKTek computer but it uses quite a bit more power IIRC. Need to run it off a battery or solar power? That’s very useful. Until the clone boards started to show up wasn’t it also basically the easiest and cheapest way to get a modern ARM computer at all? I’m not sure it’s a silver bullet for anything. But it’s a decent option for a lot of things especially.