With less than 24 hours before the iPhone 6 is finally made official, many iPhone owners are looking to unload their old devices in order to mitigate the cost of a new phone — especially the 5.5-inch iPhone 6, rumored to cost $100 more than the 4.7-inch model. There are countless vendors that would be more than happy to snap up your iPhone 5, but before you take the first offer, it’s worth shopping around. UpgradeSwap has cobbled together a list of all the best place to sell your old iPhone along with the payout range you can expect from each and the reasons you might choose one over another. First up are eBay and Craigslist. You’re likely to make more money