eBay has the Surface Pro 3 Core i5 12" 256GB Tablet (QG2-00021, Summer 2014) for $540 with free shipping. List price: $1299. Features Intel Core i7-4650U 1.7GHz, 8GB RAM, 256GB SSD, 12" touchscreen (2160x1440), two 5MP HD cameras, Surface Pen, 802.11ac, BT 4.0, USB 3.0, 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.