faremax:I always bring my laptop whenever I travel as I am very dependent on the Internet and need to have constant access. If I stay at a hotel I always lock it up in the safe. As for losing it I do not treat it any different from my other luggage (I don't want to lose any of my luggage).
I used to take the laptop with me on every trip, but I've been keeping it at home for the shorter trips now. If it's three days or more, it's always with me, absolutely! 