Makes sense when iPhone 15 is just an iPhone 14 Pro, while iPhone 15 Pro and Pro Max are having over heating issues. It doesn't help that the iPhone 15's aren't compelling upgrades for owners of older iPhones
that's not anything unique with the iPhone 15...you can say that the 14, 13, 12, 11 etc weren't significant upgrades that warranted people upgrading their older models...Apple will go through their ebbs and flows but in the long run is one of the best stocks to hold onto long term...they aren't just about iPhones either- they have an entire ecosystem of products and is now getting into AI as well