I need a new computer for grad school which starts this week, as in a case of corporate war, a flying blackberry slammed into my current Macbook screen and rendered half of it a giant black splotch. My current machine is almost five years old and I was planning on buying a new Air for school anyway. After perusing these forms I planned on upgrading the 13" base model to 8gb RAM, but would not have it in hand until the end of this week or start of the next. So to the title question - I was thinking about buying the cheapest stock 11" Air, using it for the days until I receive my upgraded 13" and then returning the 11" to the store. Has anyone done anything like this? Am I not seeing a flaw in this plan? With Apple dropping their 10% re-stocking fee, I should get a full refund, correct? Thoughts? Cheers.