In daily usage, how often do you zoom in to read things on a retina mini? With the non retina mini, some people zoomed in quite a bit to read A4 size documents or magazines. But what about with the retina mini compared to the air?
When I first got my mini I zoomed a lot but I've noticed I zoom way less now even in portrait. I think it just takes time to acclimate if you have good eyes. If I did have to zoom a lot still it probably wouldn't bother me because iOS has implemented zoom pretty well, especially with double tap.