Amazon pay for old electronics

Now Amazon will pay you for the old electronics. They had expanded their trade-in program through which any customer will be given Gift cards which can be used on ecommerce sites, for their old electronics. The Most Shopped online web service is provide by amazon and with this service it now going to compete with the  Gazelle which provide similar service since 2008.
Amazon is offering some high cost in beginning as exampled the good conditioned iPhone will be paid around $178-158 16GB. Amazon had said that they will credit after the customer's assessment within the 48 hours. Amazon is accepted to have good response from the customer and will now mark different tag to it products including "new" ,“good,” or “acceptable,”.
See what happen to the Amazon move put comment on it and give idea of this service.