well I did a very stupid thing folks. Last night I had my MBA out and had to use my iMac. I put the MBA down on the chair by my iMac. I had to leave and then came back. I walked into the room on the way to my iMac and sat RIGHT on top the MBA. Now I'm a big guy, 6 foot, 220lbs and there was not a DENT or a bend in it. Needless to say I almost had a stroke, but figured to share my experience since I've been reading some blogs questioning its durability. Well I for one can attest to the fact its a VERY durable machine.