Kindle Fire for $200.
They sell them refurbished for $170 (with a 1 year warranty) and once in a rare while it goes down to $140 refurbished for a day.
It's basically a regular android tablet (once rooted) and can handle most android apps except that it doesn't have microphone/bluetooth/GPS/camera.
Unrooted it has a limited selection of apps, but is still great for Web browsing and watching flash videos online.