Wow, Dave, that is an excellent find.
I am assuming that is the very reason why there is an extra payment here.
Great find. I have been simmering over that extra charge thinking it was just another means to nickel-and-dime customers.
Still seems a bit nickel-and-diming though... considering the program already seems much more costly (including the AppleCare+ requirement) than just doing normal trade-ins (and buying phones via some other means).
IF the Apple Card payment plan (which nets you 3% cashback) or similar wouldn't allow early pay-off and I still want the freedom to upgrade early, I'd probably just not bother w/ a payment plan at all -- I didn't bother w/ the last couple phones we bought... though they weren't the flagship models. The normal Apple trade-in value seems a lot better than what you're getting w/ the upgrade program...
_Man_