How much would you value my iPhone at?

[iMore Question]

I have a used 16GB iPhone 5c with the app Flappy Bird. The same exact types of pones are selling, at cheapest, for $350 on Amazon. How much would you value my phone at? In addition, how much do you think an iPhone 6 or 6s with Flappy Bird would be worth?

 

[Ledsteplin]

Welcome to iMore! Most I see on Amazon are in the $270 to $300 range. More for some unlocked ones. Flappy Bird doesn't add to the value. I have it on 3 phones.