Nowadays I treat laptops as disposable, since they aren't as easily user serviceable anymore (nor do most offer any kind of RAID options). I use them when I need to, but I try not to rely on them.

My main computer is a desktop (one I specifically built with Xeon processors and data redundancy). If some piece of hardware dies, other than the motherboard, I can get parts either that day or the next day and fix it myself.