(God, I hope I can explain myself the way I want to. I know how confusing I can be when I'm trying to make a point).
OK, so many of the people who seem to have a problem with Fastpass seem to be looking at it this way:
Sure, I'm waiting on a much shorter line for the attraction I'm waiting for with Fastpass, but then I have to wait on a much longer line for the ride WITHOUT Fastpass! They basically cancel each other out, and you're waiting on line just as long as you would if there were no Fastpasses at all."
That would kinda sorta be true...IF each park only had two rides, and they both used Fastpass. And there was a fixed, finite amount of people in the park all day. And there was nothing else to do.
But the fact is, you've got many rides without Fastpass, you've got lots of eating options, you've got lots of shopping options, you've got parades and outdoor entertainers and various shows, you've got that cool little theater in the Kodak pavilion that shows Disney cartoons all day (which I've never seen crowded and is a great way to beat the heat) and attractions that actually take a long time to complete even without lines (like Hall of Presidents, Carousel of Progress, the Tiki Birds). Not to mention, some people, when given a Fastpass MUCH later then when they picked it up, may opt to go back to their resort or to another park, making lines in general a teeeeeeny bit shorter.
If you're only jumping from Fastpass-worthy attraction (but without a Fastpass) to a Fasstpass-worthy attraction (WITH a Fastpass), I'm sure the lines always seem interminable, because if you're not actually doing something, you're waiting on line to do something. That gets tedious. And time has a way of standing still when you're on a regular line that isn't currently moving, and you see dozens of people strutting past you on the Fastpass line, and you know they'll be far gone before you ever get your turn. But if you're aware of Fastpass' strengths and weaknesses, you can make it work for you far more than against you. While you're just jumping from attraction to attraction, complaining that you're saving no time, someone else is getting a Fastpass to Space Mountain, walking over to Haunted Mansion, having lunch at Crystal Palace, watching the afternoon parade, and picking up a Goofy key chain on the way back over to Tomorrowland, and feeling more relaxed and having more fun as a result. I know, when I first got a FastPass for Soarin', I was able to time it so that, about 90 mintes before our one hour-window began, we went back to The Land, my wife and I rode Living with the Land and ate at Garden Grill (with ADRs), and when we were done, we just walked over To Soarin' and got in the next show, when lines were still over an hour. Most importantly, even if it was just an illusion, we didn't FEEL as rushed.
Now, the naysayers will say "hey, Slappy! Ever stop to think that most people going into the parks are adrenaline junkies who first and foremost want to hit the E-ticket attractions, and everything else is just superfluous? Didja? HUH?"
To them, I say, first, when you talk to me in that tone of voice, it's Mister Magoo, NOT Slappy.
Second of all, the people who run the parks probably know more about crowd dispersment than us, but is seems to me a good chunk of the adrenaline junkies show up in the morning before the crowds get too large. And when the crowds aren't so large, and everyone is jumping from Fastpass attraction to Fastpass attraction, it might seem like you're waiting-in-line time in toto will be about the same. But you will possibly be done or near-done with those E-ticket attractions before things get too busy anyway, and when the lines start getting too long...FASTPASS! And do all the lesser attractions and longer lunches you never could because you were waiting on line.