If you’re on the iPhone upgrade program like a lot of people, you end up trading your phone in every year or 2. To those who ended up keeping their phone after 2 years or who paid cash, do you tend to pick a phone to hold onto as a backup iPhone? I am contemplating getting the X Max this year, but there is no way I would want to sell my 8+. Or do most people just roll with one iPhone and hope for the best?