Here's one I'm dying to implement: user-generated reporting website for the wait times on the rides at Disneyland. I swear Disney distorts these for easier crowd control.
If you stay in one of the Disney-owned hotels, you get to skip the lines on all the rides. It's a little more expensive, but it's worth it, since you wait five minutes, tops, for any ride.
Disney's virtual queuing system, called Fastpass, does not create different classes of users. The only people that get special privileges are those that are doing something like Make a Wish or winners of a contest and these extremely limited superpasses don't impact overall wait times. The advantage given to Disney guests is that on each day a park will be open one hour early and up to three hours late. This isn't that much of a benefit during peak times because the park that was open early will have more guests than the other parks and you have to get up an hour early for optimal touring. The late hours aren't that much of an advantage because everyone wants to stay late in the park.
A naive perspective on Disney's Fastpass is that it doesn't actually impact total waiting time because the standby lines will take twice as long. This is incorrect because Fastpass lets the Disney engineers redistribute traffic however they want, which measurably reduced wait times for the most popular rides right after the implementation of Fastpass. Wait times are still higher than they've ever been though, because park attendance keeps going up. Disney is a profit machine.
For more information about waiting in line at Disneyworld, I strongly recommend Industrial Engineer Bob Sehlinger's The Unofficial Guide to Walt Disney World, whatever the latest edition is. He also mapped out a mathematically near-optimal plan for riding every single ride at the Magic Kingdom in one day. I really want to try doing that one day.