Curious, what is the average time do you keep your personal laptop before you feel the need to upgrade and why?
I have mine for almost 4 years to the date now, it is a Compaq X1000. So far, I upgraded the wireless card (to do 54g), RAM to 1G, and HDD to 160gb. My mistake was to upgrade the OS to Vista when it came out in 2006 which I feel add no real improvement, but it is humming fine nevertheless.
The kids use it to play online games and surf the net. I use it for work on and off (I have a work laptop also that is 2 years old).
My next one would be a Macbook Pro, just hasn't find a true compelling reason to make the jump, since it works fine for my purpose.