i look at it like this....if you are able to use a 4-5" smart phone (basically everyone in the market) an 8" tablet should NOT be a problem. Think of the mini as a REALLY big phone - compared to the Air, you just hold it a little closer to your face. Personally, I prefer to hold phones and tablets of any size at around 12" from my face. My eyesight isn't the best, but never had a problem - even on my 4.7" 6s. If one's eyesight is bad enough to have a problems with the mini - that person will likely need glasses to use the Air, too. The size of letters isn't THAT much bigger.