Look, the Nexus 7 is heavier, bigger and probably doesn't feel as good to hold.
The iPad has a supposedly better battery life, bigger screen (but about the same size as the Nexus) and nearly 300k apps that are developed for that screen res.
Don't forget that the iPad also has a pretty good rear camera, which for some reason a lot of general consumers like having.
Yeah a lot of people will get the Nexus, but that's a pretty damn good price for the iPad.
The screen resolution is inferior on the Mini. The only reasons a sane person would buy a Mini over a Nexus 7
A. Love/tied into the Apple ecosystem
B. Have to have back facing camera
C. Have to have a Aluminium back.