eBay has the Microsoft Surface Pro 4 6th Gen Core i5 128GB 12.3" Tablet (CR5-00001) for $650 with free shipping. List price: $1000. Features an Intel Core Skylake m3 processor, 12.3" 2736x1824 multi-touch LCD, 4GB RAM, 128GB internal flash storage, 802.11ac wireless, 5-megapixel front-facing camera, 8-megapixel back-facing camera, and Windows 10 Pro.
Amazon has the Amazon Fire 7" 8GB WiFi Tablet (Four color options) for $30 with free shipping. List price: List price: $50. Features 7" screen with 1024 x 600 resolution, 8GB internal storage plus microSD slot, 1.3GHz quad-core processor, 2MP rear-facing camera.
Has good Amazon Reviews.
Best Buy has the Apple iPad mini 4 7.9" 128GB WiFi Tablet (Space Gray, Gold, or Silve) for $275 with free shipping. Features 7.9" Retina Display, 2048 x 1536 Resolution, Apple iOS 9, Dual-Core A8 Chip with Quad-Core Graphics, 8 MP iSight Camera, 1080p HD Video Recording, 128GB Capacity, up to 10 Hours of Battery Life, 0.65 lbs.