Personally I always withdraw it because most times it works out better for me that way than sat in there in a different currency. I can often make extra money just by transferring it to my bank account because of the currency exchange which is always handy! I know many people that have told me they prefer to just leave it sat in PayPal for whenever they need it again. It made me wonder if this is more common than withdrawing it, so many people seem to do that.