I am not a huge fan of Paypal and only use them when I definitely have to. I've had a run in with them in the past as a merchant and they were very unfair with the way they handled the situation. They will suspend your account and hold your funds etc without much of an explanation, well at least that was my experience with them a few days ago, I don't know if they've changed the way they operate. I personally wouldn't encourage anyone to store their BTC there if they did provide that option in the future as it would be much too risky.