A:AnswerI’d be easier if you backed up your phone before you get there and all you have to do is sign into your iCloud and hit “restore from last backup” and all your stuff should come to your new phone.
A:AnswerIt really just depends on what phone you have. For example, the iPhone X has a trade-in value of around $250 (if in good condition). You would have to go consult with a Best-Buy worked to know your exact trade-in value.