If you don't think the price of a product is appropriate, you do have the option not to buy such products.Why would they have to increase the price? You keep addressing the consumer perspective with a business answer. Are you and Apple related somehow? Cousins maybe?We've already acknowledged that charging for the charger makes sense from a business perspective.
"Not everyone cares about..." could be used on every feature of the iPhone and it still wouldn't suffice as justification for anything really. If charging overnight was the only use case scenario, you might have a point. Since it obviously isn't, I'm sure you could come up with multiple instances where a fast charge would be an advantage.
Heck I skipped iPhone generations because I don't believe it's worth the upgrade price (eg. I skipped 6 because it only has 1GB of RAM, waited and bought 6S instead)
I might skip this year as well (my 6S is still doing great). I would only be interested if Apple offers complete IP68 rating on these new iPhones, and at least 3 or 4 GB of RAM (regardless of size).