I took advantage of the Best Buy deal yesterday. I have a friend that just upgraded his old iPhone 4 to a new iPhone SE. I had some Otterbox cases for my old 5S that I traded him for his old iPhone 4. Took that in and got the $450 total in gift cards. A guy in front of me was trading in some old phone I'd never seen. They wouldn't let him. He ended up buying a $50 prepaid phone off the rack and traded it in for the extra $200 gift card. The sales guy recommended that since his phone wouldn't trade in. The ad says any working smartphone, but in the system it has to be appraised at $5 or more to get the gift card. Luckily my old iPhone was valued at $5.
I went in with the plan of buying the silver GS7 Edge, but when the sales guy showed me the blue I was won over. It looks awesome. My wife who has never liked anything other than iPhones said she's considering trading in her 6S Plus for a blue Edge as well. So far loving the phone and it catches the eyes of people. They ask me what phone I'm carrying.