Best Buy has the 13" MacBook Air for $899 (well, really for $999, but they're taking $100 off for students with a .edu email). However, it's the standard model with only 4GB of RAM. In short, is having only 4GB of RAM that big of an issue/deal? Enough to be worth shelling out an extra $400? ...since the only way of acquiring an MBA with 8GB of RAM would be through Apple for $1199. I understand that RAM is important, but I'm on the fence here. I'm a Junior in high school at the moment, and I expect to make use of this MBA throughout college until I graduate, meaning this MBA will get roughly six years of usage. So I'm aware that adding extra RAM would be future-proofing it. But is it enough to justify spending that extra $400? Tax not considered since I'm buying during the tax-free weekend in my state. Also, I have a $50 Best Buy Reward Zone certificate lying around that's due for expiration in October, bringing my total (if bought at Best Buy) to $849.