Why? Aren't the present ones ones offered good enough for you?

Running at resolutions above 1920 x 1080 will eat into your framerates despite having a GPU as powerful as the 1070. I'd think it would provide a minimal increase in eye candy... but a much bigger hit in playability.

It depends what you want to do with your computer. I bought it to game with.

I am unsure if the brightness factors in here though. The 1920 x 1080 is rated as 300 nits. The higher res ones 400 nits. I've yet to see a review comparing these two screens though so I don't know how better the 400 nits screens are. In any case, they weren't available when I clicked "buy".

I have the 17R4 with 1920 x 1080. I'm very happy with my purchase decision. This thing is an amazing gaming machine.

The 2560 x 1440 is a GSync panel. This was not available when I ordered. I don't know how much nicer it is compared to the 1920 x 1080 one that I got.

I have no regrets though. I figure if I wanted a higher res/brighter display I could just get an external LCD. If you're planning to travel with it do NOT get the 17. This guy is HUGE.