I currently have half a dozen unused phone chargers in a box that I didn't actually want because I already have more functional multiport chargers in my house.

I currently have half a dozen unused phone chargers in a box that I didn't actually want because I already have more functional multiport chargers in my house. The moment you move from your first phone with an included charger to your second or third phone with an included charger, one of those chargers has a high likelihood of becoming effectively pointless. Not because the new one is any different. Just because now you have two when you only needed one.