To elaborate on what NewOwner FL said, I got a heavier, faster, cheaper laptop because I don't usually take it out on the road; I move it from room to room inside my house.
For travel I actually have one of these:
I bought it used on ebay for around $275. It weighs about 3.2 lbs, it's a 350mHz pentium2 with a 10.2" screen, 6 gig hd, and 192MB of ram. It's fine for doing document work and checking email on the road. It won't do graphics, and it won't play back DVDs, but it's light and it's good enough, and it was $275.
Tom