Illuminating keyboard is great.
It is 4 a.m. where I am at, so this prob. is in the wrong place. Anyway, I just finished a paper for college in the dark, (allowing my roomates to sleep) all because the keyboard is nice and lit up for me to type on. Plus my eyes weren't as tired because the screen dimmed automatically! This is such a great feature. Worth way more than what it costs. I guess this is my way of telling Apple thanks.