Prices for refurbished iPad 3rd gen models have dropped significantly at the Apple online store. You can now get a 16GB WiFi + Cellular model for $409. The top of the line 64GB WiFi + Cellular refurb model is just $579.
Just as a quick reference point, the iPad 3rd gen was released in March of 2012 and the original price for that 64GB model was $829.
These refurb units generally come with the same one year warranty as new models and I’ve had very good experiences with buying refurb units from Apple.
If you’re looking for an iPad for yourself or a friend or loved one, it’s well worth taking a look at these deals at Apple’s Refurbished iPad 3 page.