I meant if it costs the same as a restaurant, it's not cheaper and thus I wouldn't call it street food. I wasn't comparing across cities. If a decent restaurant decides to ditch their downtown indoor restaurant, and decide to get a food cart and offer the same food for the same price as they did, is it really street food?

A number of popular food carts in Portland have a median price of $10 or above. For things like Mediterranean food I've often found restaurants charging the same or less. At the end of the day, I'm paying for the privilege of standing in the cold/rain.