and I'm an altoholic. I've got over 2,300 hours logged on Skyrim and I've only ever completed the main quest once in my first playthrough (unmodded of course).
Oh I've used tons of mods, but I forgo even looking for them for my first play through of a Bethesda game. Lets me have a good impression of what the baseline game is like and what areas I feel could be improved with mods.