The Apple Store continues to discount its selection of factory-refurbished, current-generation iPad with Retina Display models, with deals starting at $529 with free shipping. Each ties our mention from last week as all-time lows for models with an Apple warranty. (Each carries a 1-year Apple warranty, the same as new units.) The deals:

• refurb Apple iPad with Retina Display 16GB WiFi + 4G for Verizon in Black or White for $529
• refurb Apple iPad with Retina Display 16GB WiFi + 4G for AT&T in Black or White for $529
• refurb Apple iPad with Retina Display 32GB WiFi + 4G for Verizon in Black or White for $609
• refurb Apple iPad with Retina Display 64GB WiFi + 4G for Verizon in Black or White for $689