Times are changing in themed entertainment. Now the wait is part of the ride. Disney did this with Little Mermaid in NFL and attempted it in seven dwarfs but I think Universal is taking it to new levels with Kong, the HP rides and now Jimmy.
No longer will we wait in endless switchbacks but have good entertainment that adds to the whole experience of the "ride" which may only be 2 - 4 minutes of the total.
and Space Mountain! how could you forget Space Mountain? .