This thread is a counterpoint to another thread: Rides you used to like, but now avoid for some reason.
For me, one was Star Tours. I was just so scared of it when I first went on 1989 (I was four years old) that for years thereafter, I absolutely refused to go on it whenever we went to Disneyland. But when we went again in 1995, my parents coaxed me into going on again, and I wasn't scared anymore. I've been going on with no problem ever since.
Another ride I once disliked was Splash Mountain, mainly because of the huge drop. Again, I refused to go on the following year. But then after that, I started going on again, and now, it's become one of my most favorites in the park. Go figure.
So what are some attractions that you used to avoid but now enjoy?