MobilePros1 via eBay offers the refurbished Apple iPad Air 16GB WiFi Tablet in Space Gray, model no. MD785LL/A, for $269.99 with free shipping. That's tied with last week's mention of a refurb as the lowest total price we've seen for a refurbished iPad. (It's also a current low for a refurb by $18.)
Note: No warranty information is provided.