I am using an iPad 4th Gen, however iv noticed that everybody seems to be upgrading to the air, all my friends have and my family has and even people who I thought didn't care about technology much are upgrading their retina iPads. I have decided to not upgrade because all I see is an incremental re-design and slightly faster speed, as with most upgrades. But due to the huge adoption rate of the new iPad, I just wanna know if I am missing something obvious, is there anything inside there that's revolutionary?? Iv used the iPad air and I don't notice much difference - yet -, though I do think it feels a bit better to hold. Do you think it's the change in name that has maybe tricked people into believing its a radical new product, or is there genuinely something there that's a must have for previous iPad owners? Thanks guys.