While contemplating the purchase of a iPad mini the only thing that has been holding me back was the non retina display (163 ppi). I have a iPhone 5 (326 ppi) and iPad 3 (264 ppi) so I am spoiled with their great displays. My desktop computer has two Dell 24" 1080p monitors which I have always thought looked nice but guess what, by going to www.thirdculture.com/joel/shumi/computer/hardware/ppicalc.html I found out they were only 91 ppi. I now have renewed interest in the mini. Not saying I'm out the door to buy a mini but I now think its worth my time to go have a look.