For me, camera upgrade was a significant driver in the upgrade from a 5S to an 8.
I also have a compact and dSLR, but the best camera is the camera you have and that’s often my phone. I have a lot of pics of my kids that were unfortunately taken on an iPhone 4 or similar era touch and are noticeably terrible.
I'm sure it is for most people. I've always taken pictures of my niece and nephew on a decent camera, I'm pretty sure they'll last the test of time. Every new phone claims to have a good camera, when to me it's still not good enough and doesn't justify the £700+ for a new phone.
I also have a compact and dSLR, but the best camera is the camera you have and that’s often my phone. I have a lot of pics of my kids that were unfortunately taken on an iPhone 4 or similar era touch and are noticeably terrible.