Is it worth getting and iPad when you can get a iPad minni?

ipads, as of July 03, 2013 , come in three versions, with prices of USD$ 329, 399, 499, with the Mini topping out at $659 with cellular and 64 GB of RAM, and the ipad Retina at $929 with cellular and 128 GB of RAM.

The Mini has a 7.9 inch diagonal screen at 163 pixels per inch, and the Retina has a 9.7 inch screen at 264 pixels per inch.

The Mini uses an A5 dual core CPU and the Retina uses the A6X dual core with quad core graphics.

They use the same cameras.

If 'smaller' makes it better the Mini is best. If bigger and faster is better, then the Retina is best.