$0 down is a great way to get a tablet in your hands and then pay off the full price interest-free for the next two years. It is only the 16GB variants that are $0 down, with 32GB and 64GB models costing you $99.99 and $199.99, respectively, up front.
200 MB is not much data on a tablet, but they are offering this for free for as long as you own your iPad so it is tough to complain. You can easily add more data with daily, weekly, and monthly options.
T-Mobile cellular customers can add an iPad for $10 a month and get 500 MB of LTE data in 2GB increments costing you another $10 per month each.
This 200 MB of free data isn't limited to just the iPad line either. If you have another compatible tablet, the LTE Google Nexus 7 for example, then you can also take advantage of this free data offer.