Adorama offers the 6th-generation Apple iPad 9.7" 128GB WiFi Tablet in Space Gray for $399 with free shipping. (Electronics Valley via eBay offers it in several colors for a buck more.) That's $1 under our mention from three weeks ago and the lowest price we could find now by $5, although other retailers charge $429 or more.
Refurb iPad Air 64GB WiFi + 4G Verizon Tablet for $250 + free shipping w/code FATHER15
JemJem offers the refurbished Apple iPad Air 9.7" 64GB WiFi + 4G LTE Tablet for Verizon in Space Grey for $259.99. Coupon code "FATHER15" cuts that to $249.99. With free shipping, that's the lowest price we could find for a refurb by $57, although we saw a refurb for $15 less in January.