Re: It's a good idea to take things home with you when you buy them.
On devices within limited storage (why would we need more, it's all available in the cloud!), we are encouraged to buy, download, watch/listen/read/play, wipe, and repeat, with a UI that gives the impression these shiny trinkets which we believe we have purchased will always be there for us.
And DRM stops us from making a backup copy of what we believe we've purchased.
I guess this is commonly known as a scam.