I don't know why I got on this train of thought, but I thought of all the electronic entertainment shit I have - laptop, cell phone, mp3 player, and TV with Xbox 360, and how if I could only have one I'd have my laptop.
I can still make calls and communicate with people with my laptop, still listen to music, play games, and most importantly, do schoolwork. I think if I were to rank things I own in terms of value my laptop would be at the top.
Recently my dorm had a fire alarm (thankfully false, but recently friends of mine at another university had a lot of stuff ruined when the sprinklers activated for a real fire) and while still mostly asleep I grabbed my laptop and charger and tossed it in my backpack before evacuating. I believe my thought was that if I did lose everything I could thrift shop for new clothes and buy new school supplies, but would never be able to afford to replace my laptop and would still need it for school.