I think beyond transportation, the train, the sky way, the people mover, and the monorail gave people a chance to take a break and plan what to do next. Frankly, waiting 2 hours standing in line for a 3 minute sit down ride is not very relaxing. It's no wonder parents push their 10 year old kids around in strollers and feed them churros. There are almost no relaxing rides left in the park!
As for the Sky Way, it was exciting to see the subs from overhead, to travel through the matterhorn and catch a glimpse of the showman, and to see the storybook boats from overhead. The towers weren't that bad because the highest point was inside the matterhorn and that tower was hidden.