Currently we have 5 lines and stagger our upgrades. Basically we usually upgrade every year when new device comes out. Normally we sell our old devices and atleast break even with the phone (and buying new one). We can get the $199 or $299 back that we paid with the new 2-yr contract. We normally have sold them quite easily but it's still a pain. I am debating the AT&T Next plan. Basically we could just "lease" the phone for the 12 mos and turn it in for a new one. We wouldn't need to worry about keeping it in pristine condition and the pain of selling them. However, I think it would be more expensive doing the Next?? I don't quite understand the pricing. I see lots of talk about discounts for mobile share etc. We have the grandfathered-in unlimited data plan. So do we get a discount of any sort??