For the first time, Apple is selling refurbished models of the iPad mini with Retina display. The benefit here, of course, is that buyers are now able to pay less for Apple's popular tablet, while maintaining a free 1-year of AppleCare warranty as well. For now, it's just the Wi-Fi models that are available refurbished--nothing yet for the Wi-Fi + Cellular versions.
The 16GB Retina iPad mini is $339, which is a 15% discount from the full $399 price. The 32GB version sells for $419, which is $80 less than the standard price, and the 64GB model is $509, which is a price drop of $90. For now, there are no 128GB versions of the iPad mini with Retina display available as a refurb.