I'm not sure. At least for me, part of the charm of these older consoles (do they qualify for the "retro" term yet?) is the smaller resolution of the displays. Especially for the bottom screen on the DS line, there is something very warm, fuzzy, and cosy about clearly being able to see each individual pixel.
Perhaps it's just nostalgia. I still own my DS Lite, though.
The DS came out ~21 years ago, in 2004.
In 2004, the games I played that had come out ~22 years prior, give or take two years, were already considered retro: Donkey Kong, Pitfall, Pac-Man, Asteroids, etc. And ~21 years prior was the great video came crash of '83.
Suffice to say, we're dinosaurs. I've made my piece with it and spend a considerable amount of time listening to old British dudes break down 30 year old games.
The best music is always from ones own youth