I got an iPhone 4S on a 2 year contract, but 2 weeks in I got mugged and it got stolen 
I am eligible for an upgrade in March 2013, which I assume by then will be the new model.
I used my iPhone for a lot of things, and for my studies, and am a little bit lost without its features. I wonder if it is worth buying an iPhone 4S outright now and selling it on eBay when I'm eligible for an upgrade.
How much can I expect to lose on the resale value of the iPhone 4S by March next year?
I am eligible for an upgrade in March 2013, which I assume by then will be the new model.
I used my iPhone for a lot of things, and for my studies, and am a little bit lost without its features. I wonder if it is worth buying an iPhone 4S outright now and selling it on eBay when I'm eligible for an upgrade.
How much can I expect to lose on the resale value of the iPhone 4S by March next year?