This should have quite a big impact on resale value of older iPhones. (iphonehacks.com)
This upside here though is lower fuel consumption, just as the higher purchase prices should be somewhat offset by higher resale values for a model that's traditionally strong in that regard. (motoring.com.au)
As for resale value, our house recently sold in 7 hours... so there's that. (theletteredcottage.net)