TMI my friend.
Back on topic, when you use the Vita for remote play does the disc for the game you're playing need to be inserted into the PS4? I ask because it appears games install onto the PS4's HDD, but I think this is to decrease load times and improve game performance. I don't think this would give a user full access, but I'm not 100% sure. When a digital game is purchased and downloaded onto the PS4 HDD, then I'm guessing you can remotely access your game library and easily play, giving the user more incentive to purchase digital copies.
Let me know if I'm missing something.