[crickcreek]

It is good practice to store your media locally, espcially for something you'll consume more than once. It keeps the costs down on the remote server, which in the long run provides a better experience for the user.

I do not have constant internet access. Furthermore mobile internet is very expensive. I can just run a bash script on my terminal emulator that checks if I'm on a known wifi network and runs my downloads and copies them to proper folder.

This way I can listen to music without the internet and/or without requiring that i leave my screen open and on the youtube app.