Godfrey
somewhat colored
Value is driven by personal needs, so if I don’t see the value in what smartphone CAN deliver with all its functionality because I don’t need it or don’t like it - it is an objective assessment of the value. It may have a value to someone, but not to another. It does not deny the advances of the technology - it is great. But for me it does not replace my cameras.
I agree that one's personal evaluation of a thing is driven by personal needs, but the value of that thing should be measured against objective, external standards of what it is capable of doing and how well. Once you have the valuation, you make your choices against the context of your priorities, desires, and needs.
I have not ever said that a smartphone can replace my cameras. Not at all. I have said that my smartphone can do some kinds of photography better than any of my other cameras, which is easily demonstrated. If I value the kinds of photography my other cameras do more than what the smartphone can, well, I choose to use them over the smartphone.
There is a reason why my home is littered with so many cameras, you know. 🙂
My iPhone 8 Plus does a wonderful job of being a camera with its dual camera setup and all the great image processing apps, etc. With the Moment camera app, case, auxiliary lenses, and grip—plus an excellent tripod adapter and any of my tripods!—it become a full system of photographic equipment capable of a lot of things beyond what the bare phone can do.
The biggest issue with this "full system" is that once you add all that additional equipment to what you need to carry, the only weight and space savings involved over any of my other cameras is the trivial difference of the additional weight and size of the other cameras themself. You have to judge for yourself whether it is worth carrying the smartphone system for the things it does beyond what any of my other cameras do vs just carrying the phone for what it does beyond any other cameras' capabilities and carrying the specific camera system for its unique advantages.
This is a complex, personal set of choices that depends upon what it is you intend to do with your photography.
Most of the time, I carry just it and a small, foldable stand that I can fit in my wallet like a credit card so that I can always have a support to use for when I need to fully stabilize the camera or get a photo of myself in the absence of another person to hold it. And I carry another camera for most of my photographic aims. Example: I was in SF overnight for a dance concert on Monday and I carried the iPhone 8 and my Minox 35. During my day of walking and wandering about the city, snapping pictures and enjoying some stores and such, I did all my photography with the Minox: it is perfect for that kind of urban, street stuff. During the concert, I didn't even bother to carry the Minox because it would prove almost useless ... but I made 13 still photos and 10 videos with the iPhone that I'm really satisfied and pleased with.

The Raised Hand – Bill Graham Civic Center Auditorium, San Francisco 2019
iPhone 8 Plus, rendered with Snapseed
Use whatever works to get the photographs you want to make. 😀
G