I don't see how the supercar analogy is any different than the standard use case of a phone camera vs a standalone.
Sure, a standalone gets you higher resolution, optical zoom, etc, but consider where those photos are most likely to be viewed - you can't get the most from them without going to a special place (printer). You can't make people view them on a PC. Realistically, most people are going to be viewing their photos on their phone, whether they originated there or not, after they've been mushed through facebook or insta's compression anyway. People who own cameras try to rationalize this away but it's true.
Sure, a standalone gets you higher resolution, optical zoom, etc, but consider where those photos are most likely to be viewed - you can't get the most from them without going to a special place (printer). You can't make people view them on a PC. Realistically, most people are going to be viewing their photos on their phone, whether they originated there or not, after they've been mushed through facebook or insta's compression anyway. People who own cameras try to rationalize this away but it's true.