Hey all, I'd rather ask this question here because I know I'll get a straight answer that's easy to understand, rather than dealing with AT&T. I'm looking into getting a 12.9 iPad Pro w/cellular. Best Buy shows the price as $54/mo for 20 months for the 256gb model. Does this include the cost of data, or is this strictly paying off the iPad itself over a 20 month period? I'm on the AT&T Unlimited Choice plan if that matters, and we have 4 lines.