Netflix vs. Speedy Gonzalez

I have just started using Netflix, mostly because there's no good video store in my neighborhood. (Isn't this New York City?) What is particularly great about the service, beyond the deep selection, is that DVDs are shipped to you so fast. It's kind of unbelievable. Every time I send out a DVD, I get the email saying it has reached Netflix the following morning, and early. They send out my new one same day and it reaches me the next. Right now I'm watching the first two seasons of the US version of "The Office" virtually without delay!

I understand they have shipping centers near to just about everyone, and they use a bar code on the envelopes, but seriously, who has this much success with the US Postal Service? Anyone know the secret here? Perhaps this has something to do with it?

I see that there are blogs where users complain about Netflix shipping -- this college student (ouch) is "literally angry with rage!" -- but bloggers like to complain. There are also bloggers offering congrats. Count me one of those.

[Updated at 12:36 p.m.]