Gameplay is way more important than graphics. Source: played a lot of fun but crap-looking games in the 90s on a 320×200 four-shades-of-amber screen. Or what about the 160×144 Gameboy screen that also supported 2-bit color?
How good a game looks is not simply a function of the number of pixels and colors the screen can display. There where great looking games on the Gameboy and there are terrible looking games running at 4K on the latest GPUs.