Question/Idea about reselling iPhones on eBay

[richorlin]

Big Daddy Cool wrote:
[quote=richorlin]
…so the new phone cost $90 out of pocket…

plus whatever you originally paid for the 2G iphone.
Yes, but that's a "sunk cost". Doesn't fit into the equation.
It's already spent, whether I upgraded or not.

For those not familiar with the term: "sunk cost - cost already incurred which cannot be recovered regardless of future events"