I bought the Dell XPS 13 with the hidpi display. I didn't buy it for the touchscreen and I couldn't buy it without if I wanted the resolution.

I'd have happily paid less for the same resolution but longer battery life (low power for driving the touch sensor and more for driving the display to a greater brightness to support the same display brightness).

I figure I should have put up with a lower resolution display tbh, which is sad.

Personally, I find FHD on a 13-inch screen perfectly fine. One might be able to distinguish between FHD and QHD on the screen, but definitely not at a regular viewing distance. This way, I don't have to deal with any of the issues that HiDPI typically brings as well.

What I really wanted was a non-touch FHD Developer Edition with Rose Gold, but c'est la vie. It's been one of my favorite laptops.

Yeah, like I said, I should have just stuck with the FHD display :( Tradeoffs...

Not no reason - as I said, the tablet mode is useful. Just not in the scenario when you're normally be using a keyboard and trackpad.