I was recently reading the Union-Tribune's "Burrito Chronicles" and I found myself in total agreement with both the author and the "burrito expert" they interviewed in the article. Before we really get going here is the original article:
And a follow up article:
In San Diego when you order a burrito you get something simple but honest which doesn't try to be something it isn't. The tortilla is lightly toasted and you won't find junk filler like rice and beans in our burritos; instead if you order carnitas then your burrito is filled with carnitas and little else. Plus there is normally a great salsa bar filled with freshly made salsa. If you go north of San Diego and get further from the border burritos turn into something wholy less satisfying. They start to steam the tortillas so that it becomes soggy and has difficulty keeping its shape. If you order a carne asada burrito there is very little actual carne asada in it and most of the burrito is just junk filler such as rice & beans. It costs a bit more to have an honest burrito but once you have one you just don't want a junk burrito.