In certain way I would, but just only for the A6X. I dont care much about the lightning port and such, but if I had bought the iPad 3 (which costs a LOT, almost like a windows laptop or mac mini if you get the bigger storage models) I would feel like I just threw 500$ to the rubbish.
The A6X will bring a noticeable difference, specially in the future iOS 7 and 8 updates.
Ipads are not cheap by any means. 500$ is the cheapest one. Imagine someone who bought the 32GB WIFI + LTE or the 64GB. That feeling would just be terrible.
iOS 7 is still a year away from now, let alone iOS 8 (what? are you 2 years ahead of the rest of us?).
My early 2012 iPad 64gb still powers on and behaves as fast/smooth as ever. So no, I don't feel any loss or sorry for myself.