If you want to hawk your old gadgets to help pay for your new ones, there are a few services that will make it incredibly easy to do. However, if what you're looking to buy is made by Samsung, the South Korean electronics giant will help you out by buying your old gadgets.
Starting today, if you go to Samsung's Facebook page, you can fill out a form and get a quote on your old phone. The only catch here is while your old phone that doesn't have to made by Samsung, the one you buy with the sale money must be. Of course, the more desireable your phone, the more money you'll get.
So if you're looking to go from an iPhone 4S to a Galaxy S III, you should expect to get a good chunk of change.