I'm pretty much set on buying the standard 27" iMac configuration, and I'm fine with the current model and feel no need to wait til the Haswell upgrades, as I'll be wanting the iMac for the upcoming school year. But I do want to wait til Apple announces their education event, to see what they're giving away, just to make sure I don't miss out. My question is, should I buy one asap, before the refurbished standard 27" iMac configuration goes out of stock? Is there a time where they go frequently out of stock? Thanks.