I know everyone is saying why doesn't the Mini have Retina...but I don't think it's a problem.
I think people feel as if they're going from an iPad 3 to and iPad2. When in all reality the iPad Mini has a better PPI. 163 in the Mini vs 132 in the iPad 2. The same ppi as the iPhone 1st-3rd generations
And for people complaining about the A5 Chip...The A5 Chip was in the 4S which had Retina Display. And the 4S ran very quickly. I think the A5 chip inside of something without a Retina Display will run it just as good (if not better) than the 4S.Despite the fact the iPhone 4S retina display has less pixels than the iPad Mini.
Yes, I know in a year some these features will be included. But for now I think it's a solid device. Better than the 4th Generation iPad because they went back 2 generations on it's chipset, included the iPhone 4's camera, went back to 512mb of RAM, back to the 2010 with the same screen res as the original iPad...lighter, thinner, and sleeker.