I’m not sure what your point is, or what evidence you think you have for it. The 6.1/6.5 Pro are equal in spec. They’re only separated by $100. So which one sells better?<snip>
Apple has done its math and found that a substantial number of customers buy the largest in order to have maximum specs., which they would not do if even the smallest were equal. Hence a reply to this:
Larger, more feature-rich phones cost more to make, so they sell for more. I’m not sure it’s any more complicated than that.