I am a high fidelity junkie. Not in music, but in photography. I can't get enough sharpness, tones, and texture.
Which is lovely, but it is healthy to once in a while remember that this has little to do with the value or impact of art. Witness: 640x480.net. This guy, Michal Daniel, uses an organizer, of all things, to make art photos, mostly street photography. And his pictures are just amazing. He really owns the low quality of the tiny camera he has sitting on his Visor organizer, and uses it to make wonderful pictures.
... Reflecting on it, I don't think the pictures would be less wonderful if they had better sharpness and tones. Possibly even better. I think the value of the Lo-fi system is the freedom you get from it. It is much less serious to use.