Can i do a trade-in in best buy like go up there get a phone and trade in mine real quick?

You can do this at apple! Im not sure about Best Buy, you will have to check with them. When trading in most iPhones, apple offers you up to $500 credit to go towards your new phone. If it's a newer phone, they refurbish it and sell it at a discount to someone else, and older phones they take apart and recycle.

Why don't you give BB a call and find out?

Report back your finding.

This is the Apple forum. Ask Best Buy.