Apple Store iPad mini
Just go and click on the compare iPads button.
The iPad mini with retina screens are identical in everything except the finger print reader.
Unless you are a diehard fanboi there is really no reason to upgrade.
As to iOS 8 it works fine on the old first generation IPad with retina screen so again no reason to upgrade.
I'd also stick to the older smaller screened iPhones unless you really need a bigger screen.
Biting the hand that feeds IT
