Sorry, I may be ignorant, but what's the problem of amazon's device trying to connect to amazon? I mean, how else are you going to get auto-book downloads, page syncing, kindle store, etc. If you don't want that, just turn off wireless.
The Kindle+3G device that I have is no longer "amazon's device" - it belongs to me now, I paid for it.
If you just want to read books, start with this one:
George Orwell, 1984
Beyond that, I will only say I believe it should be the owner's choice of if/when/what activity of theirs gets reported to someone else.
My own personal opinion and may not be shared by every reader here.