The Samsung Galaxy Tab 4 is a pretty decent tablet. Sure it's not the Galaxy Tab S, but it is under $200, and that's with 4G LTE connectivity. This is the 8-inch Galaxy Tab 4 and it will work on AT&T as well as T-Mobile. Which makes this a pretty good deal, actually. It has a 720p display and a Snapdragon 400 inside. There's also 16GB of storage along with a microSD card slot.
Pick up the Samsung Galaxy Tab 4 8-inch 4G LTE for just $180 from eBay!