I wouldn't mind going to a one-dayer, if there was a nice quiet area to escape. But the older I get, I find the bands I don't like more of a distraction.

I was never into big, three-day festivals. Especially the ones in the UK. In fact, I don't think I've ever stayed the full weekend anywhere.

Edit: Except Primavera. There's no mud and the hotel is right across the street.