I am another person trying to figure if it is better to keep our AT&T 2-year contracts and unlimited plans, or switch to Next/mobile shared plan. I have 4 iphones on 2-year contacts. One with unlimited data and the 2-year contract has expired. Two have 3GB of data and the contracts have also expired. The last one has unlimited date and the contract expires December 2016. Looking to replace the three expired contracts with an iphone 6S and two iphone 6S+. Doing another 2-year contract with the 3 expired phones at subsidized costs would total $1,235 ($300, $400, $400 + $135 activation). Since we usually replace phones every 2 years, I was looking at Next 24. The total payments for 2 years on the same phones are $2,005 ($600, $680, $680 + $45 activation). The current monthly cost for the data plans is $240. Switching to the 15GB mobile share plan is $185 a month or lower by $55. The Next phone costs are $770 higher. But, the 15GB plan would be lower by $1,320 over 2 years. Is changing plans resulting in lower costs of $550 or am I missing something? I know that I could sell the phones after the contract expires so the costs may actually be about the same. One of the reasons considering the change is the two phones usually get close to the monthly 3GB limit. Also for the fourth line, do you know if the monthly shared data plan rate of $185 will be reduced by $25 once that contract expires?