This approach even allows the manufacturer to correct design flaws after the fact -- and let's face it, there will always be design flaws. For instance, my FW13 originally came with a very weak hinge for the screen. It was perfectly usable for most daily usage and most people probably wouldn't care, but it meant I couldn't hold it up without the screen tilting back. Well, FW corrected this for those customers who really did care by just selling a new hinge for $24, and so $24 + 10 minutes with a screwdriver later, I had a substantially more refined device! (And to clarify -- there was a defective hinge version in the early batches, and those were replaced free of charge. Mine was a slightly later version that, beyond lacking the level of stiffness I preferred, was not defective.)