Well, my last trip to WDW was 1990, so I'm probably not the one you should ask!
But it's a really cool train.
In fact, while you're there, pick a quiet time (like maybe mid afternoon.) Ask your parents if you can do a run on the monorail, or maybe when you're on your way back to the Contemporary for dinner. Ask the CM at the front of the monorail line if you can sit in the front car, with the conductor (or is it engineer?? I don't know-- the guy who runs the train!)
You may have to miss the first monorail, but my sources (here) tell me it's wonderful!! It's one of the surprises I'm planning for my kids.
How old are you? I bet we can come up with some other cool stuff!