Yep Disney is full of tricks. It's very deliberate, but not necessarily nefarious. You can read into it what you want.
Example: As soon as you enter Disneyland, there's a main street, lined with shops on either side, leading to the 'magic castle' or whatever at the
end of the street. Look closely at the shops. The first story is standard height, the second is few feet shorter, the third is actually about half
the height of the first! It's all painted proportionally, so you don't notice unless you look for it.
There's deliberate tricks of perspective, to create the illusion of a larger area, without having to walk so far. It puts you in an other-worldly
mindset, like the rules of the world are subtly suspended.
Also note how they 'manage' lines. Everything you wait in line for, is split into various segments, that you can't necessarily see from one to the
other. There's different themes, decoration motifs, etc. The 'waiting in line' experience is part
of the overall experience; Disney uses
it to 'set the tone' for the experience they want you to have.
You can learn a lot about the psychology of perception by wandering around Disneyland and observing.
I wouldn't necessarily take it too seriously, though. I like what Spider Robinson said:
There are people who can quarrel with the goals and practices of the Disney corporate empire, and I'm not going to argue with them. There are
those who are very cynical about Disney and all it represents, and I say screw those people. I had a wonderful time.
Which emphasis a pretty important point: Yeah, notice the manipulation, question the motives, become annoyed when you're being exploited, but don't
let it kill your sense of wonder, and don't become so cynical that you never trust that sometimes, people are just trying, in their imperfect way, to
make something that's fun.