Hi guys, I have a rev. B coming in tomorrow and as much as I love the MBA I'm very concerned about the hinges. I know to avoid using hard cases, don't open the screen to much, and handle with care but I'm still worried it may break by itself. Also I know Apple may or may not replace it depending on I guess the mood of the genius so I was thinking of buying 3 year insurance by Squaretrade. Does anyone know if this company is legit?