Originally Posted By: andym
Why would I pay £300 for a second-hand iPhone with no warranty that's still going to be sim locked to O2 when I can get the same thing, brand new for £350 PAYG?

In the US, one might buy the used phone because their contract term isn't up. I'm selling my Blackberry Curve for $150 on Craig's List when you can technically buy one new for $99, but that requires a two year contract.

If you're not out or nearing the end of your contract with AT&T, they will happily sell you a 32GB iPhone 3GS for $499...and re-extend your contract.
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Matt