I can't believe the amount of people fooled by the AT&T Next plan...
Let's do the math: AT&T says that the Samsung Galaxy S4 will have a monthly installment fee of $32, on top of your existing AT&T service fees, which already include a device subsidy. The exact amount of that subsidy is unknown, but most industry estimates have put it at something like $20 per month. That's how you can get a GS4 for $199 with a new two-year contract, even though it costs $620 at retail: after two years, AT&T will have collected $680 in total device payments from you, and you get to keep the phone.
But the balance tips entirely towards AT&T with Next. Assuming that same $20 subsidy, after 12 months of Next you will have paid AT&T $384 in Next monthly installments and $240 in device subsidies, for a grand total of $620. Again, that's exactly the full retail cost of an unlocked Galaxy S4 — but you don't get to keep that phone, even though you just paid full price for it. You have to trade it in to get a new phone — effectively giving AT&T a free GS4 to refurbish and resell to its next unwitting customer.
Now, you do get to keep your Next phone if you pay 20 monthly installments, which will cost you a whopping $1,040 if you assume a $20 subsidy: $640 in Next payments, plus $400 in subsidies built into your AT&T plan. That's $420 in pure profit for AT&T, which just made you pay full price for a phone while charging you inflated service prices that include a subsidy specifically designed to lower the upfront cost of that phone.
source: http://www.theverge.com/2013/7/16/4528404/att-next-phone-upgrade-plans-a-huge-ripoff
I can't believe the amount of people that quote a 2-year old, incredibly incorrect story, still.
Next lops off 25 dollars per month from the 40 dollar monthly access fee, so you only pay 15. You own the phone, you don't return it unless you upgrade *before* you pay it off. So saving $25 per month for 2 years amounts to a 600 dollar savings. And you only pay the monthly fee for as long as it takes, so a 750 dollar phone only ever costs you 750 dollars. No more, no less.
With a contract, you pay 200 dollars up front, and then you pay an extra 25 dollars per month forever, but for arguments sake, we'll use the exact same 24 months... So that 600 dollars saved on Next you now pay onto that phone, so your 750 dollar phone costs you 800 after 24 months... So after 24 months, you're already behind 50 bucks from where I am.
But then if we keep the phones, things get interesting... I stop paying my fee, yet you keep paying 25 dollars more per month. If we kept it another year, my 750 dollar phone has only cost me 750 dollars. Yours has now cost you 1100.
Maybe next time, don't plagiarize, check the date on the article... And read the comments where the author has been corrected.