Its a big conundrum, most likely Apple will update the Retina iMac before the end of the year, but if they don't, I would be buying a year old+ Retina iMac. I have an aging 2010 Macbook Pro thats holding me through, but I definitely need an upgrade. I would obviously prefer a Skylake updated processor but if its Broadwell so be it. If it gets refreshed I'm buying it.