As someone who has Beta 5 on an iPad Air, it's awesome. But personally, If I'm going to be making a $500+ investment, I won't make it knowing full well that the next version will replace it shortly. I mean the iPad Air 2 will have a faster processor, Touch ID (which will be awesome with iOS 8) and a slew of other improvements. I'd wait until it releases in a month or two myself. But to each is own.