I use both Android and iPhone, iPhone for work. While $10k would be amazing, the thing that would sway me isn't the money but being able to get rid of iOS.
One main reason why I keep a personal phone is because I hate how iOS works. I mainly use the iPhone for work because i don't want to use it if I don't have to.
Since I have used both OS for quite a long time on a daily basis, I know what's on the other side and overall, I find a lot of things annoying about iOS ranging from no swipe/pinch in Apple CarPlay on the maps, to the awful way iOS handled notifications and the asinine app drawer implementation, Apple's way or the highway mentality and more.
I'd only buy an iPhone for personal use if there was a way to wipe the phone of iOS and install another OS on it. Its hardware is amazing, not a fan of how the OS is designed. Apple is great with seamless ecosystem integration though, that I'll give them praise but everything else about iOS is annoying.