Comment To answer the question directly (Score 5, Informative) 113
"If you were feeling especially paranoid, but wanted to keep the hardware intact for the next user, what would you do?"
To me these are mutually exclusive. If I was feeling especially paranoid, I would probably hurl the thing into a cauldron of molten lava, because, you know, the definition of being especially paranoid is an intense fear of others invading our privacy or being out to get you.
Disposing of my tablet by giving it to another person is wholly incompatible with your premise of me feeling especially paranoid.