Not an expert, but based on my research...
Pixel density will be based on your distance to the screen. At 27"+ on a typical desktop distance, you'll see the difference.
But I think a bigger factor is the color gamut and contrast. A HD screen with fabulous color and deep black (like local dimming) will greatly improve the visuals.
Nevertheless the high end monitors and TVs are have high resolution.
I would say to wait and rely on upscaling for the moment.
This is what I am doing.
Pixel density will be based on your distance to the screen. At 27"+ on a typical desktop distance, you'll see the difference.
But I think a bigger factor is the color gamut and contrast. A HD screen with fabulous color and deep black (like local dimming) will greatly improve the visuals.
Nevertheless the high end monitors and TVs are have high resolution.
I would say to wait and rely on upscaling for the moment.
This is what I am doing.