It's not always just battery replacement: Spend 12% of the cost of a new phone to keep the deficient one running, spend even bigger fraction on both battery an

It's not always just battery replacement: Spend 12% of the cost of a new phone to keep the deficient one running, spend even bigger fraction on both battery and another overpriced fix to have decent QoL on the used phone (or other way around, fix a broken screen to have a working old phone with bad battery or spend bigger part of the price of a new phone to fix both), expecting the new battery to die sooner, requiring another 12% as well as other overpriced fixes due to the phone's age -- or just buy a new phone and impress whomever you want without any hassle and worry? I don't think that's majority of cases, but I bet it's a significant amount (>5%), in a large market