iPad mini resolution: 1024x768
iPad2 resolution: 1024x768
What exactly are you trying to tell us? That the interface is optimized for one and not the other? It's the exact same resolution! If it doesn't look clear, then either your eyesight is the issue or something is physically wrong with the screen.
You are not thinking about what you are saying.
By your logic, if there was a 12" ipad with the same resolution as the iphone 5, then it should be running the iphone version of iOS, because they are the same resolution and it makes no difference, right? Just blow everything up x3 because they are the same resolution right?
1024x768 on a 9.7" screen is not the same thing as 1024x768 on a 7.9" screen.
Icons and graphics look better on the mini because of the higher PPI, but the thing that suffers is small text (when the OS and font rendering is not adjusted for the smaller screen).
If you want an example where this abundantly clear, open the description pop up for any app in the App Store on both the mini and the ipad 2 and come back and tell me which one looks right and which one looks broken.
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The point is that nobody cares about retina for images or video, where is makes little difference. People want retina to view small text on the web. Open up the homepage of NY Times or any other similar site in potrait mode. It's illegible without constantly panning in the ipad 2 and Mini, whereas it is perfectly legible on the retina iPads or any other computer for that matter.
You are just a special case that apparently doesn't look at any websites on their ipad and that's why you can't see the point of retina. 99% of people do read text in safari however, so most people can see the benefit.