Cost of the iphone 7 devices are not included because they are paid for and used. If we are doing that, are we going g all the way back to our first phone ever? They sell all day long for $350 on swappa. Your min cost of new line for 2 months is wrong. I won’t use any data on that line so with $20/per line plan plus $10 kickback each month, I’m looking at $20 for 2 months. Prepaid card is $700, not $550. How could you manipulate that for your scenario, seriously? What are you, a politician? We are at +210. If you take out the cost of iPhone 7s, and I don’t know how you can’t, unless we are going back to ground zero with first phones, we are at plus $1,310. Cost of one iPhone X.
Ok listen, I tried having patience but your tone obviously is that you're talking down to me. So if there was misunderstanding on my part, it's because you're not articulating very well. Really you're making no sense. You said:
"I bought 2 iPhone 5s on eBay $45 each."
When? What did you use if for? Is this for the BOGO trade in? Was it for some other trade in?
"Add a line and cancel in 2 months."
In the terms it clearly states that it has to has to be a Tmobile One plan. The cheapest plan shown on their website is $40 per line. With it being a smartphone that this BOGO is for, you are required to have a data plan. So cheapest plan is $40*2 months=$80. EDIT: I think I understand what you're saying about $20 for an additional line with the total in mind compared to whatever you're paying total now. But that depends on the # of lines, but assuming you're saying $20, you must already have at least 3 lines.
"Sell my 2 iPhone 7s for $350 each."
I'm not arguing the price at all but you make it sound as if you'd be getting these iPhone 7's using this current BOGO. If not, you can say that these are iPhone 7's you already have.
"$1400 in ($350*2+$700 card)."
You'll only get $700 if you purchase an 8 or better. Since you haven't mentioned which phone you're doing a BOGO on, we have no idea if you get 700 or 550. Again, the $550 I used was from their terms clearly stating that if you purchased iPhone 7's for this BOGO, which you make it sound like you are, you only get $550 back.
"$110 out ($90 for 5s’s + $20 extra line for 2 months($10 kickback discount) Net of $1290, the cost of one full 256gb iPhone X. = True boo."
As for the kickbacks, I have no idea what that is or why you get it or think you'll get it. Please share with the rest of us how to save $10.
You very well could do all of this but you just aren't clear at all on what you're actual plan is because you're talking about 4 phones total. It makes it sound like you're boiling all 4 phones down to 1 phone and it's still unclear which one is the BOGO set. I'm all for a good deal but the plan you laid out isn't coherent for anyone to try and follow to see if it actually would be a good deal