Is this a good idea for a cheap way to get the iPhone 5?

I just thought of this idea. I currently have an iPhone 4 and I want an iPhone 5. There are no upgrades until May and I can't take that one. Is a good idea to add a new line for 10 dollars, Cancel my other line for 175$, add data for 35$ and then buying the iPhone for 200$. That will equal a little over 400$ and then selling my phone for 150$.So all I really have to pay is around 250$. Do you think this will work or will it mess up my family's account plan. Any suggestions?

Why get the iPhone 5 when apple is just gonna keep coming out with new devices. Just wait till Christmas or a birthday because you'll just want the iPhone 6 or iPhone 7

It really depends on what provider you have but really there's hardly a difference between the two phones its just a big waste of cash… Just look up the differences and decide if that is worth 250 dollars(its not)

I suggest you have a long chat with a doctor. That's a heck of a lot of money and hassle to go through for a freaking telephone. (By the way, the dollar sign goes in FRONT of the number). And since there's very little difference between the phone you have and the new one (seriously), why would you completely screw things up to do this? For an iPhone?

It does work to do that, but I wouldn't suggest it unless you are willing to pay to cancel the other line right away. Just got rid of a line I had for 2 years.

Just get iPhone 5. I got iPhone 5 I switched from the 4 to 5 and it's much better! You'll see once you get your phone. You won't regret it