Not familiar with the demographics of each resort. I imagine the values are more popular with families with children. More people per party, more money to spend on prices that are static i.e. tickets, food , merchandise etc... so you have to save somewhere.
I find a lot more Electric Grannies at value resorts. You can't go to a bus stop without running into (and having to wait on...) those darn scooters.
Last two trips were at moderates, and found them less crowded in general, and only one Electric Granny in two trips...
But I started driving and avoiding the buses all together, and find myself enjoying that a lot more.