Ok, final response... I swear...
It is a loss because you’re dealing with depreciation, same as with cars...
On a $1400 phone you’re gambling that you’ll get 50% of your money back on a sale, if you decide to upgrade in 12 months.
I don’t have that worry because it goes straight back to Apple... I don’t care about projected market value 12 months from now because I’m guaranteed apple will take it back, so I ONLY pay for 12 months of owership then upgrade OR I can keep the phone and pay it off, that works for me (for the 1 millionth time).
also, you don’t get market value on “trade in” vs “sell price”... iPhones aren’t THAT hot!
Do what works best for you, can we agree on that?