If I was buying another notebook (which I probably will never do again),
it will be an Apple Macbook Pro.
Apple is coming out with laptop batteries that last up to 4x as long
(4 years - as opposed to standard 1 year).
Another reason is cheap cases and poor design. I bought a Dell and had
nasty-looking stains from my palms around the keyboard within 1 month.
I contacted Dell, they wouldn't replace this defect. Similar happened to
Apple, and Apple recalled all those effected laptops.
Another reason is Mac OS X. When there is a new version, you can
get a family bundle to install on up to 5 computers for ~$125.
And another reason - heating. My Dell got extremely hot very
quickly. It was uncomfortable to use the keyboard because all the heat
went to my hands. I'm not sure how much heat effects Apple laptops,
but I would guess they have better design.