1) Camera's had proven use and adoption before being mounted on mobile computers. RAM has been ever increasing since the inception of it.
2) My comment should be seen in a timeframe. When I say no one needs 6GB RAM, there is an implied 'in 2017' added to that. Otherwise every discussion about hardware could be killed with you argument.
>As long as they're not going backwards, I don't see a reason why these companies should not go with them.
The question is: which one do you choose to put in your phone now. Knowing Android, knowing the other specs of the phone and knowing what kind of apps people use.
In that case: I think the SD835 is overkill for 99% of people. That last 1% being people who want the fastest simply _because_ it is the fastest, or who play the most advanced mobile games / VR. Those people are a very small subset of all smartphone users. 1% might be too much.