Apple Store offers the factory-refurbished Apple iPad Air 16GB WiFi Tablet in in Silver, model no. MD788LL/A, or Space Gray, model no. MD785LL/A for $419 with free shipping. That's $11 under our mention of a new unit from last week and the lowest total price we've seen for an iPad Air with an Apple warranty. (We saw a refurb with a reseller warranty for $399 last month, still available.) A 1-year Apple warranty applies.