I would say the biggest change is the GPS system to help them keep buses going to the resorts or parks to relieve long lines.... the music and spiels will be nice, too.
My second thought is - Well, the music sounds great as long as cranky kids can still fall asleep, but am I going to have the spiels memorized by the time I'm on my third day of vacation because there's a limited number of them playing and re-playing?
.....but am I going to have the spiels memorized by the time I'm on my third day of vacation because there's a limited number of them playing and re-playing?