I think it is a deal. I already have several iPhones that are usable as spares. I really don’t need to keep my current X. So when I ordered my XS Max, I selected to trade in my X to Apple. They are offering $525 and comparing that with other offers from Gazelle and myphonesunlimited, I think it is the better deal. Sure, I could try private sale, but why risk the theft or the hassle to list it, meet up, and listen to them trying to talk me down off my price?