What is the cost difference between an IPad Mini with WIFI versus an IPhone 5?
I’d compare the cell data versions myself, personally, to be fair head-to-head, instead of WiFi (because then you can just use the iPod Touch instead of the iPhone as the comparison).
But I was surprised, the phone was the most expensive - for 16 GB with cellular, the Mini is $459, the current iPad is $629, and an unlocked iPhone 5 is $649.