eBay has the Microsoft Surface Pro 4 Intel i5, 128GB 12.3" Multi-Touch Tablet w/ Keyboard for $450 with free shipping. Features Intel Core i5 Skylake dual-core processor, 12.3" 2736x1824 multi-touch LCD, 4GB RAM, 128GB internal flash storage, Windows 10 Pro 64-bit.
Walmart has the 6th-Gen Unlocked Apple iPad 9.7" 32GB WiFi + 4G Tablet (MR6Y2LL/A) for $299 with free shipping. List price: $459. It features 9.7" (diagonal) LED-backlit Multi-Touch display with IPS Technology, A10 Fusion chip with 64-bit architecture, Embedded M10 coprocessor, 1.2MP FaceTime HD camera, 8MP iSight camera, Touch ID.
Walmart has the Apple iPad 6th-Gen. 9.7" 128GB WiFi + LTE Tablet (Space Grey, Silver, & Gold, MR7C2LL/A) for $399 with free shipping. List price: $559. Features A10 Fusion chip with 64-bit architecture, Embedded M10 coprocessor, 8MP iSight camera.