Originally Posted by Foss 
I played and finished Morrowind without any mods at all. One of the best game experiences I have ever had.
Same here, except that I didn't finish it, despite enjoying well over 100 hours of gaming from it. When I play it again, which I'm hoping to do later this year or early next year, I might try the graphics extender. I don't feel that Morrowind needs any mods that add/change quests, monsters, NPCs, etc.
It's simply a great game if you're an "explorer", one of the best ever imo.