You can make as many copies as you want of the games you downloaded and they are not tied to your account. You can just give away a copy of the game. You can not sell it officially/legally but you could give someone a copy for cash. I think you could leave someone a hard-drive full of games in your will.

I can absolutely recommend Babylon Berlin! I’m currently in the 4th season and every one of them has been great. https://www.youtube.com/watch?v=j_qN5bFfOTE&t=58

I use about 1 - 2GB per month of my 40GB so I have way more mobile data available than I need.

I think it’s interesting that they increased the price for your plan. I live in Germany and I think the only thing that’s constantly getting cheaper are these mobile data plans. They always upgrade the data but the price stays the same.