I looked for this posted and didnt find it. I have been looking for phones on eBay and the link on eBay's page for me today was to a Best Buy site that allows you to apply 25% off new cell phones with 2 yewar activation(didnt see IPhones). They had for example the Galaxy S3 32 GB model for $187 after discount - apply code HOLIDAY25. This incldiues Verizon T-Mobile and ATT not just Sprint (I saw some good deals on Sprint posted).
I really dont know if this is a referral link - it is where I got to when I clicked from eBay to Best Buy