I think they are cool I haven't really had the time or stuff to do much with them besides install a Linux distro, but a very nice thing to have around. I thought about making a 3D printer or maybe a phone with one.
Also the list is cool you should read it. I'm sure you will find at least one thing you didn't know you needed.
I think evil is too strong a word for Amazon, I think benzos is one of the nicer billionaires but I have heard the horror stories from Amazon warehouses.