Is there an online, discount AT&T retailer that lets you order their shared data family plans?
I'm trying to find a good deal on some handsets for someone who is going from a single line AT&T plan to a family shared-data plan. I saw Amazon has great deals on the Samsung Galaxy S III, but they don't let you order the shared data plan. Wirefly doesn't seem to service AT&T anymore and Costco has good deals but their own weird restrictions.
So, does anyone have sage wisdom on the matter, especially as it may be hyper-relevant in the orgy of online shopping that is tomorrow?
High-end Galaxy and mid-range iPhone handsets are the focus, if possible.