I think you can make some good arguments about phone sensors, Gerry,
but I don't think the comparisons can accurately be made when comparing
dedicated sensors against the all-use sensors of phones.
While the phone sensors keep getting better, combined with computational processing,
I think you'd still be up against a wall in making any hard-pressed arguments against
a dedicated sensor within a dedicated camera device.
For example: I can grab a great-resolution image with my phone's camera,
but I can get a better-quality image of the same with my dedicated camera,
and process it to a better image.