Because I like to read on my portable devices, this is the most important feature that Apple could bring to the iPhone. Now, if you’re the type of person who only watches video or plays games on your iPhone, this may not matter as much to you. Fine, but I believe that it’s a provable fact that there is a direct correlation between reading and intelligence. Just kidding.
Or maybe your eyes are so bad that even slow smooth scrolling makes text illegible. In which case, a 120hz refresh rate still won’t make a difference. I feel sorry for you people. Like people who are color blind, there is nothing that can be done for you. But don’t say that 120hz is a meaningless feature, because for most people, it’s the most exciting thing coming.