Comment by topaz0

You underestimate how much of the cost is the chassis, hinges, screen, speakers, keyboard, which add up. Sure the CPU is the single most expensive component, but CPU + mainboard for the fw13 is less than half the price of a new fw13. And of course part of the idea is that you don't know what you'll have to replace first, when you're staring out. You might bust the hinge, or get excited about their touchpad upgrade, or decide you need a higher resolution screen, long before you need the new mainboard. The flexibility, in other words.