Such a short sighted comment based on your own needs. My photo library is 130gb and counting - I still have to add all my old videos taken with camcorders. And no I'm not a proff photographer.
If you have kids/family, take a lot of photos and videos, and have also imported old photos/videos from cameras, camcorders, old phones etc, you could quite easily have a photo library thats 100-150gb+ so your forced to use the optimise option which means having to wait for every photo/video to load. You also can't view your media if you don't have a internet connection. I'd love to store my entire photo library natively, so everything loads instantly.
This is not even taking into account around 20gbs of music, a 6.6gb tomtom app, and multiple tv shows and films purchased on iTunes which I can't currently download even on a 128gb device.
Put simply, a 256gb version would mean all of the above is possible. I appreciate not many people will need it, but to suggest it's ridiculous just because you can't see any need for it is itself ridiculous.
I agree! I use my iPhone 128gb 6S+ for work and take many, many photos required for my business. In addition to family photos, videos and such, a 256gb would be perfect!