It's part of the experience. Of course, today's society has conditioned us to be immediately gratified - which is a shame because nobody takes the time to appreciate things like this.
The transition is long and gradual, both into the park, and leaving. You go from true civilization, to the parking, to a unique form of transportation taking you far away from civilization, to the main entry tunnels, and into a whole new world. And in reverse, it eases you back into civilization in the end.
But since everyone just wants to get there, get in, max out their ride count, and get home....it's lost a lot of its charm.