Quote Originally Posted by Segev View Post
I could be mistaken, but I think there's a difference between "deleting" and "unsubscribing." The latter just means you stop giving them money. The former is a stronger statement, but also means that they will keep anything you purchased digitally. (Which means I would strongly recommend, if it's legal to do so, downloading copies of anything you've bought.)
They do let you see PDF versions of most of the books you buy. I would say it's not a legal issue of you make backups of those on your own computer for you own personal games. But I guess consult an actual lawyer if you're worried.