I recognize that they currently have basically the most refined hardware on the market. However: No other device I own is in the Apple ecosystem. Not one. So the benefits are just not there.
quite frankly the benefits of owning an iPhone are kinda garbage unless you fully buy into the Apple ecosystem for full intercompatibilty. Trying to interact with other Androids, Windows, Linux machines is just pain. Otherwise, it's just a slightly better built, slightly better specced, very much more locked down phone like every other phone. It does phone things. Not worth the premium.
This is why I've not bought apple products ever. Once you're in their ecosystem you're locked into their control. Honestly OPs question is 100% ass backwards. Tell me why I SHOULD buy apple.