The value judgment of "not worth it" is relative to perceived improvement in getting a new phone, but for many people the judgment is "can I get a new phone for $69?" Outside of carrier subsidies in the US, that's still not possible.
Not that 1000$ are a bad deal for an iPhone that will easily last you 4+ years.
versus
$69 to keep a premium-at-the-time iPhone 6S alive.