Just want to make some things clear as I've read conflicting posts and I just did some research. If you are on, for example, a 12-month cycle and you want to upgrade each year you have to trade in the phone. You cannot sell the phone unless you pay it off which is either 8 or 12 more payments. After those extra payments you own it but you will have paid 2x the subsidy price. So the 6+ 64GB is $43/mo which will be $860 on the 20 month plan. That's MUCH more to "own" the phone vs. getting it subsidized for $400 and then being able to sell it for around $200 in a year. So we're talking $860 or $200 for a $660 difference. If you can get $25 off you bill then that shaves $300 from that $660 but you are still paying more to "own " the phone. Note that the $25 discount is only available for some can but others like me can only save $10. It might make some sense if you can get the $25 monthly discount and then plan on trading in every 12 months. You will have paid $516 and get a new phone and less a $300 discount the difference is $216 which is basically what it costs the person who does the buy on contract and then sell for 50% of cost of next phone.