Sam Radford:

Then there’s the size though. For some reason—and I’m really not sure why—the larger screen makes reading the magazines a much more enjoyable experience for me. Perhaps it’s because the apps were originally designed for the larger size and then scaled down for the Mini. But, whatever the cause, having my magazines on my retina screen Air is a whole lot more desirable. I’m choosing to read there rather than picking up the physical copies lying around my house.

Interesting thoughts from Sam. Personally, I still like the reading experience on the iPad mini more than the physical copy.