Street food in the rest of the world is fantastic -- as good or better than what is served inside four walls. Street food in the US can also be fast, inexpensive, and very good. Not just tacos. I've eaten at great food trucks in San Francisco, Portland, New York. Why don't we see more of them? This is a serious question. Do they not make enough money? Are they thwarted by restaurant lobbies? Overzealous health codes? Nervous neighbors? I can't believe there is no market for them. Why aren't food trucks everywhere?
Or food carts?
Update: From the comments there is a suggestion of a website devoted to promoting food trucks. Looks useful: Mobile Food News.
All in San Francisco ^
Both in Portland ^
In New York City ^