A high resolution display on a Windows laptop means nothing if the apps aren't designed to take advantage of it. This is especially important if you see yourself spending a lot of time in non-Microsoft and non-Windows Presentation Foundation/Direct2D/Direct3D apps on the Windows desktop. This pretty much means anything that comes with Windows, most modern Microsoft apps, games, Firefox, and... well, not much else.
I'd be more concerned on how the display looks. Is it bright enough? (Most should be able to go neon indoors with showroom at the very least.) Does it look mottled? (Thankfully, only Acer can produce screens this atrocious.) Colour calibration issues can be fixed easily after purchase using either Windows or the graphics driver's colour (management) settings.
The funny part is that DPI scaling has been there in Windows since forever. It was on Windows XP; heck, it might have been in as far back as Windows 9-freaking-8, though DPI scaling as we know it was introduced in Windows Vista. (It looks like Vista was just too far ahead of its time in terms of hardware.)
If I were to rank what's most important in terms of a system's performance these days, I'd advise that you put more weight on the storage. Most non-bottom-feeder laptops should have both "fast enough" CPU and "roomy enough" RAM; you should check out on what features the laptops offer, the connectivity options, the display, and, most importantly, the storage medium the laptop uses. Try to go hybrid at the very least - you'll be thankful that they exist, even if they are caching-based. I don't miss traditional HDDs after moving to a 8GB/1TB hybrid.
I'm glad that I got the Surface RT instead of the Acer Iconia something. The latter's display is a horrorshow!