@Pathologist, We share a lot of the similar feelings for the movie and the "mood"
Also a lot of you have "tuned" into your own special reasons for loving it, I love that part!
Here's my reasons:
The movie depict an era were you didn't need to close your doors, and your neighbor were your friend and could drop in at any given time, no such things as trespassing or any sinister motives, it was just people hanging out and being themselves.
Also, I liked the illusions of the fake "American Dream" we all grew up with back then, you know - House, Wife, Car, Dog, Kids and a job we all hate.
It was something to shoot for, somethings that made us think - THIS is how I want to live when I grow up. And it pretty much steered my choice of neighborhood and house after watching the movie for the 100th time or so, I literally live in a Cul-de-sac like that, and were the neighbors are as nosy and curious as in the movie, it's got its quirks and isn't always rosy and unicorn like, but REAL - Like Ricky says in the movie:
"This isn't a movie - THIS IS MY NEIGBORHOOD".
My favorite is Rumsfield as you can tell from my Avatar because he represent the weirdos I like to hang out with. As a Kid I hung out with the arcade-repair dude, he was as weird as they came, you know - house full of weird stuff, and you'd never get bored visiting him once in a green sky's night.
Also I like that everyone hangs out, Ricky and Dave hangs out, but they also hang out with the neighbors, nothing weird about that, it's just people being bored and enjoying eachothers company - today, that stuff is a sad suspicious affair and you can hardly talk to anyone + or - 5 years off your age without something being really off or totally wrong in the publics eye. I don't like todays society, at all.
I even like that people competed for the prettiest yard on the block, not that I care that much - because mine is like a cross between the Klopeks and Petersons, Green but an amazon jungle in Sweden (yes it's possible, it's the south of Sweden, we don't really have winters here, but it get's dark for too long periods).
Guess I'm a cross between Art, Peterson and Rumsfield in a sense that I'm a home owner like Peterson (and curious about my neighborhood), and a little like Rumsfield because I like to keep our place clean from hoodlums and "get-off-my-lawn" kinda type, at the same time I'm very much for "supporting our troops", and a little of Art since I'm a bit on the chubby side, and quite childish at times, and like his amateur electronics, I'm also into electronics.
If I could live with you guys from the community on a common street were we all bought houses, I'd actually consider doing that, because I suspect we would have the most awesome neighborhood - EVER!
And I guess I'd have to call the Pizzadude, we're gonna have a party!