Did I say it didn't make sense to upgrade? I may have to eat my words.
Apple buys back used iPhone 4S models | Macworld

$345 for a white 64 GB phone. That payout won’t be in cash, however: You’ll get a gift card that can be used to buy products
—perhaps even the next iPhone model—at both your local and online Apple Stores. The "perhaps" part is the sticking point for me. We'll see......

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….