What if you've got a family plan? I'm running 3 phones on the family plan with ATT, and one of the numbers is still on the limitless data plan that ATT offered way back when the iPhone first came out. My son has that number, and he depends on that limitless data like a lifeline--I checked this month's usage and he's already at over 2 gigs, with 19 days left on the month. We have limitless text as well. The cost is over 3 times the 60 you mention, but the limitless data would add up to the difference, I think.
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