Its not all that straightforward - even with a lower plan, if you're still on a 2 year contract, then switching to NEXT, depending on when you get your 2 year contract device, gets that device cleared so you're getting out of the old contract without any EFT plus you get to keep/resell the old device.
The old unlimited data are nice but you can't get mobile hotspot on it, which can be quite handy. Again all depends on one's own needs.
NEXT is subsidized on mobile share, not as much as a contract device, so either way, one isn't really going to be paying full price.
But don't believe the full AT&T marketing math, NEXT is definitely not always cheaper as they'd try to make you believe.
The old unlimited data are nice but you can't get mobile hotspot on it, which can be quite handy. Again all depends on one's own needs.
NEXT is subsidized on mobile share, not as much as a contract device, so either way, one isn't really going to be paying full price.
But don't believe the full AT&T marketing math, NEXT is definitely not always cheaper as they'd try to make you believe.