The Nexus 7 is coming up on a year old at this point, but it's still a capable tablet with a great screen. If you don't mind using last year's hardware, the Nexus 7 can be had at a nice discount on eBay today. You get your choice of the 16GB, 32GB, or 32GB LTE variant for up to $70 off.
The 32GB WiFi tablet has the steepest discount at $70 off Google's price, but the $40 savings on the 16GB and $55 discount for the LTE variant are nothing to sneeze at either. Since these are refurbished, you only get a 90 day Asus warranty.
The price includes free standard shipping to the US. Anything else and it'll cost you. There are limited quantities available, so make the call.